{"id":163260,"date":"2026-02-16T23:00:00","date_gmt":"2026-02-17T00:00:00","guid":{"rendered":"https:\/\/watchman.news\/?p=163260"},"modified":"2026-02-21T05:42:51","modified_gmt":"2026-02-21T05:42:51","slug":"this-small-molecule-reverses-alzheimers-disease-progression-study-shows","status":"publish","type":"post","link":"https:\/\/watchman.news\/uk\/2026\/02\/this-small-molecule-reverses-alzheimers-disease-progression-study-shows\/","title":{"rendered":"This Small Molecule Reverses Alzheimer\u2019s Disease Progression, Study Shows"},"content":{"rendered":"<p>Nicotinamide adenine dinucleotide (NAD+) may be one of the most overlooked factors when it comes to optimizing cellular health. It is a cellular coenzyme that plays a role in many metabolic and signaling reactions.<\/p>\n<p>For example, it partakes in redox reactions \u2014 <a href=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2025\/02\/03\/redox-reactions-simplified-part-1.aspx\" target=\"_blank\" rel=\"noopener\">chemical exchanges that transfer energy between molecules<\/a> \u2014 which lead to the production of adenosine triphosphate (ATP), your body&#8217;s energy currency.<sup style=\"font-size: 10px;\"><span id=\"edn1\" data-hash=\"#ednref1\">1<\/span><\/sup> In fact, research shows that a deficiency is linked to an array of conditions, such as sarcopenia and diabetes.<sup style=\"font-size: 10px;\"><span id=\"edn2\" data-hash=\"#ednref2\">2<\/span><\/sup><\/p>\n<p>But that&#8217;s not all \u2014 Alzheimer&#8217;s disease, the most common form of dementia,<sup style=\"font-size: 10px;\"><span id=\"edn3\" data-hash=\"#ednref3\">3<\/span><\/sup> has now been linked to declining NAD+ levels. Following this line of thought, emerging research shows that boosting NAD+ intake can reverse the progression of Alzheimer&#8217;s disease. This discovery could be one of the biggest breakthroughs in recent times, as most people believe that Alzheimer&#8217;s only worsens the longer it goes,<sup style=\"font-size: 10px;\"><span id=\"edn4\" data-hash=\"#ednref4\">4<\/span><\/sup> and treatment focuses on slowing decline rather than reversing it.<\/p>\n<div class=\"video-rwd has-figcaption\">\n<figure class=\"op-interactive aspect-ratio\">\n<iframe id=\"odysee-iframe\" style=\"width:100%; aspect-ratio:16 \/ 9;\" src=\"https:\/\/odysee.com\/%24\/embed\/%40DoctorMercola%3A2%2FHow_To_Support_NAD_Levels_for_Better_Focus_and_Clarity%3Aa?r=8dGRVmbyWmNKjW1MsKZ7qsiBbbPq1aGS\" allowfullscreen=\"\"><\/iframe><figcaption class=\"op-large op-center\"><a href=\"https:\/\/odysee.com\/@DoctorMercola:2\/How_To_Support_NAD_Levels_for_Better_Focus_and_Clarity:a\" target=\"_blank\" rel=\"noopener\">Video Link<\/a><\/figcaption><\/figure>\n<\/div>\n<h2>Restoring Brain Energy Reversed Advanced Alzheimer&#8217;s in Animal Models<\/h2>\n<p>A study published in Cell Reports Medicine set out to discover how Alzheimer&#8217;s disease can be reversed by boosting NAD+ levels. For the experiment, the researchers used multiple mouse models of Alzheimer&#8217;s disease that already showed severe cognitive impairment, brain inflammation, tau pathology, and structural brain damage.<sup style=\"font-size: 10px;\"><span id=\"edn5\" data-hash=\"#ednref5\">5<\/span><\/sup><\/p>\n<p>Mice were administered P7C3-A20 at a dosage of 10 milligrams (mg) per kilogram (kg) of weight each day. Analysis involved observing changes across behavior, brain chemistry, and physical brain structure. For context, P7C3-A20 is a carbazole compound that can readily cross the blood-brain barrier. It works by binding to NAMPT (an enzyme that controls how much NAD+ is made from niacinamide) to enhance NAD+ production<sup style=\"font-size: 10px;\"><span id=\"edn6\" data-hash=\"#ednref6\">6<\/span><\/sup> at safe levels.<\/p>\n<div class=\"indent\">\n<p><strong><span class=\"bullet\">\u2022 <\/span>One striking finding is the rate of improvement \u2014<\/strong> The authors reported that in treated mice, cognitive function recovered fully, meaning their memory performance returned to levels seen in healthy animals. These mice performed just as well as non-diseased controls on learning and memory tests.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>What changed inside the brain samples \u2014<\/strong> Multiple hallmarks of Alzheimer&#8217;s disease improved at the same time. Tau pathology, which refers to tangled protein structures that disrupt neuron function, decreased after NAD+ restoration. Neuroinflammation markers dropped, indicating a calmer immune environment in the brain. Signals of oxidative stress and DNA damage \u2014 both signs of energy failure inside cells \u2014 also declined.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Results were observed right away \u2014<\/strong> The intervention occurred after the disease had fully developed in these animals. Again, this directly challenges the long-standing belief that Alzheimer&#8217;s damage becomes permanent once it crosses a certain threshold.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Other disease models were used to solidify the findings \u2014<\/strong> The researchers tested the same approach in two different forms of Alzheimer&#8217;s pathology. In amyloid-driven mice and in tau-driven <a href=\"https:\/\/www.bibleserver.com\/KJV\/Psalm19\" class=\"bibleserver extern\" target=\"_blank\" rel=\"noopener\">PS19<\/a> mice, restoring NAD+ reversed advanced disease features. That distinction matters because amyloid and tau represent different biological drivers of Alzheimer&#8217;s. Seeing improvement in both strengthens the argument that NAD+ disruption sits upstream of these visible brain lesions.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Blood biomarkers also benefited \u2014<\/strong> Treated animals showed reduced levels of phosphorylated tau 217, a biomarker now used clinically to track Alzheimer&#8217;s severity. This helps bridge the gap between animal research and its implications for Alzheimer&#8217;s disease in humans.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>At the center of all the changes is NAD+ homeostasis \u2014<\/strong> NAD+ is required for cells to convert nutrients into usable energy and to repair daily damage to proteins and DNA. That said, the study found that Alzheimer&#8217;s disease severity correlated with how disrupted NAD+ balance became in the brain. In other words, as energy systems failed, disease features worsened and restoring that balance reversed the cascade.<\/p>\n<p>The researchers described this as a &#8220;resilience&#8221; model rather than a single-target approach. Instead of attacking amyloid alone or tau alone, restoring NAD+ stabilized multiple systems at once \u2014 energy production, inflammation control, blood-brain barrier integrity, and cellular repair. Thus, the findings reframe Alzheimer&#8217;s as a system-level energy failure rather than a mystery buildup of toxic debris in the brain.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Human relevance strengthened the findings further \u2014<\/strong> Using human brain samples and sophisticated molecular analysis techniques, the authors reported that NAD+ disruption also tracked with Alzheimer&#8217;s severity in people. They identified overlapping biological nodes between mice and humans that responded to restored NAD+ balance.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Mechanistic explanation of the benefits \u2014<\/strong> The paper explained that NAD+ acts as a central coordinator for enzymes involved in DNA repair, mitochondrial function, and stress resistance. When NAD+ levels fall, these systems stall. Neurons, which require constant energy, suffer first. Restoring NAD+ reactivated these pathways simultaneously.<\/p>\n<p>The study also highlighted why focusing solely on plaques has delivered limited success. Amyloid and tau accumulation appeared downstream of NAD+ disruption rather than as isolated causes. Once energy systems failed, the brain lost its ability to manage protein turnover, immune balance, and structural integrity. Fixing the upstream energy deficit corrected multiple downstream failures at once.<\/p>\n<\/div>\n<p>From a practical standpoint, the findings support the idea that improving <a href=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/01\/08\/how-leucine-supercharges-cellular-energy.aspx\" target=\"_blank\" rel=\"noopener\">cellular energy<\/a> changes the trajectory of Alzheimer&#8217;s disease rather than simply slowing damage. It shows that neurons under metabolic stress can recover when you address cellular energy production at its root.<\/p>\n<h2>NAD+ Restores Memory by Rewriting Neuronal Instructions<\/h2>\n<p>In a related study published in Science Advances, researchers examined how restoring NAD+ reverses Alzheimer&#8217;s features inside brain cells from a genetic perspective. Specifically, the researchers focused on gene regulation, which influences how neurons read and process instructions that control memory and brain resilience.<sup style=\"font-size: 10px;\"><span id=\"edn7\" data-hash=\"#ednref7\">7<\/span><\/sup><\/p>\n<div class=\"indent\">\n<p><strong><span class=\"bullet\">\u2022 <\/span>Core findings of the analysis \u2014<\/strong> Increasing NAD+ corrected widespread errors in gene instruction processing and restored memory performance, but only when a specific control protein, EVA1C, remained intact. When this was suppressed, the memory benefit disappeared, even with NAD+ restoration.<\/p>\n<p>Another important improvement that was observed is memory retention. Animals receiving NAD+ showed clear restoration of learning and recall ability, measured through standardized behavioral tests used in neuroscience research. When researchers interfered with EVA1C expression in the hippocampus, those gains vanished, even though NAD+ levels rose.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>A deeper look into the mechanism at play \u2014<\/strong> The study showed that NAD+ corrected abnormal alternative splicing events across many genes. For context, alternative splicing refers to how cells assemble genetic instructions before building proteins.<\/p>\n<p>Think of the process as editing a recipe. If the editing goes wrong, the cell produces dysfunctional proteins. In Alzheimer&#8217;s models, these editing errors appeared widespread. NAD+ restored normal editing patterns, but only through EVA1C.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>The largest benefits appeared in hippocampal neurons \u2014<\/strong> This is especially observed within the CA1 region. For context, the hippocampus is the brain&#8217;s memory hub, and CA1 neurons act as a relay station for forming and retrieving memories. When EVA1C levels dropped in this region, NAD+ no longer improved memory performance.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Comparisons between test variables \u2014<\/strong> NAD+ alone improved memory only when EVA1C function remained intact. Meanwhile, EVA1C suppression alone worsened memory outcomes even when energy levels improved. This shows that NAD+ and EVA1C did not work independently \u2014 they functioned as a linked system, with EVA1C acting as the gatekeeper for the cognitive benefits of NAD+.<\/p>\n<p>The study also included human data. Researchers reported that EVA1C expression was reduced in the hippocampus of participants with Alzheimer&#8217;s disease compared to cognitively normal controls.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>A closer analysis of the mechanisms involved \u2014<\/strong> Ribonucleic acid (RNA) splicing determines which protein versions neurons produce. In Alzheimer&#8217;s disease, incorrect splicing led to dysfunctional proteins that weaken synapses and disrupt communication between brain cells. Now, NAD+ restored normal splicing patterns by regulating EVA1C activity, which stabilized protein production inside neurons.<\/p>\n<p>Again, the researchers emphasized that this process represented a form of resilience. Neurons did not simply slow deterioration \u2014 they regained the ability to produce functional proteins required for learning and memory.<\/p>\n<\/div>\n<h2>Before Boosting Levels, It&#8217;s Important to Get a Baseline<\/h2>\n<p>Based on the findings, boosting NAD+ has enormous potential when it comes to managing Alzheimer&#8217;s disease. Hence, testing your current levels is important, as it would be wise not to take any supplement without proper direction or planning.<\/p>\n<div class=\"indent\">\n<p><strong><span class=\"bullet\">\u2022 <\/span>A new test will be launched in the future \u2014<\/strong> I&#8217;m excited to introduce the upcoming Mitochondrial Wellness Test Kit, which is designed to offer you a current snapshot of your mitochondrial function. While this provides an overview, additional targeted testing may still be needed to fully understand the more intricate nuances of your health.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Existing NAD+ tests fall short \u2014<\/strong> NAD+ is highly unstable once it&#8217;s outside the cells and degrades quickly, making reliable measurement difficult. To maintain accuracy, it requires immediate processing and advanced laboratory methods.<\/p>\n<p>In practice, this means blood samples need to be collected and analyzed rapidly within the same research facility, which is not possible at most clinics. Moreover, transporting samples between labs further compromises integrity. Despite these obstacles, my team and I have remained committed to advancing practical health testing for everyone.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>A higher standard for NAD+ assessment \u2014<\/strong> Mercola Labs is developing a novel solution that avoids the pitfalls of measuring NAD+. Instead, we assess NAD+ levels by analyzing redox balance among these essential biomarkers \u2014 acetoacetate and beta-hydroxybutyrate, lactate and pyruvate, and the oxidized and reduced forms of glutathione. Additional details will be shared closer to release.<\/p>\n<\/div>\n<h2>Niacinamide Supports NAD+ Production<\/h2>\n<p>Taking niacinamide is a convenient way of boosting your NAD+ levels. However, this approach calls for precision and balance \u2014 the reason why I encourage proper testing. While high doses have shown benefits in clinical settings, smaller and consistent amounts are far more appropriate for everyday use. This approach supports mitochondrial and metabolic function without placing unnecessary stress on the body, since excessive intake can disrupt methylation pathways and raise the risk of adverse events over time.<\/p>\n<div class=\"indent\">\n<p><strong><span class=\"bullet\">\u2022 <\/span>Take small, evenly distributed daily doses \u2014<\/strong> For daily support, take 50 milligrams of niacinamide three times per day. This modest dose supports NAD+ production without the risks associated with high-dose vitamin B3 supplementation. You can even divide it into four servings per day. Take one dose upon waking, one before bed, and space the remaining doses evenly throughout the day.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Excessive B3 intake can be counterproductive \u2014<\/strong> Taking too much vitamin B3, whether as niacin or niacinamide, will lead to negative outcomes. Research cited by the Cleveland Clinic indicates that high doses can increase cardiovascular risk.<sup style=\"font-size: 10px;\"><span id=\"edn8\" data-hash=\"#ednref8\">8<\/span><\/sup> Although both compounds are forms of vitamin B3, niacin does not activate NAMPT the way niacinamide does, making niacinamide the preferred option.<\/p>\n<p><strong><span class=\"bullet\">\u2022 <\/span>Don&#8217;t forget the other B vitamins \u2014<\/strong> Adequate intake of other B vitamins is essential for overall health and mitochondrial function, particularly niacin, riboflavin, and folate. Suboptimal mitochondrial health is often linked to B-vitamin deficiencies,<sup style=\"font-size: 10px;\"><span id=\"edn9\" data-hash=\"#ednref9\">9<\/span><\/sup> which can typically be corrected with a low-dose, high-quality B-complex supplement.<\/p>\n<p>When it comes to food sources, vitamin B3 is abundant in grass fed beef and mushrooms.<sup style=\"font-size: 10px;\"><span id=\"edn10\" data-hash=\"#ednref10\">10<\/span><\/sup> Vitamin B6 is found in grass fed beef, potatoes, and bananas.<sup style=\"font-size: 10px;\"><span id=\"edn11\" data-hash=\"#ednref11\">11<\/span><\/sup> Folate (vitamin B9) is plentiful in spinach, broccoli, and asparagus,<sup style=\"font-size: 10px;\"><span id=\"edn12\" data-hash=\"#ednref12\">12<\/span><\/sup> while vitamin B12 is concentrated in foods such as grass fed beef liver, wild rainbow trout, and wild sockeye salmon.<\/p>\n<\/div>\n<h2>Frequently Asked Questions (FAQs) About NAD+ and Its Link to Alzheimer&#8217;s Disease<\/h2>\n<div class=\"faq\">\n<div>\n<p class=\"faq-responsive\"><strong>Q: <span class=\"questions\">What is NAD+ and why is it essential for cellular and brain health?<\/span><\/strong><\/p>\n<p><strong>A: <\/strong>NAD+ is a core cellular coenzyme required for energy production, mitochondrial function, DNA repair, and metabolic signaling. Low NAD+ levels impair cellular energy and are linked to aging, metabolic disease, and neurodegeneration.<\/p>\n<\/div>\n<div>\n<p class=\"faq-responsive\"><strong>Q: <span class=\"questions\">How is NAD+ connected to Alzheimer&#8217;s disease progression?<\/span><\/strong><\/p>\n<p><strong>A: <\/strong>Research shows Alzheimer&#8217;s disease severity correlates with disrupted NAD+ balance. Declining NAD+ levels impairs neuronal energy, repair, and resilience, suggesting the condition is driven by upstream energy failure rather than plaque buildup alone.<\/p>\n<\/div>\n<div>\n<p class=\"faq-responsive\"><strong>Q: <span class=\"questions\">Can restoring NAD+ reverse Alzheimer&#8217;s-related damage?<\/span><\/strong><\/p>\n<p><strong>A: <\/strong>In advanced animal models, restoring NAD+ led to full cognitive recovery, reduced inflammation, improved tau pathology, and lower blood biomarkers, even after severe disease was established, challenging the idea of irreversible damage.<\/p>\n<\/div>\n<div>\n<p class=\"faq-responsive\"><strong>Q: <span class=\"questions\">How does NAD+ improve memory at a genetic and cellular level?<\/span><\/strong><\/p>\n<p><strong>A: <\/strong>NAD+ restores proper gene instruction processing through EVA1C-dependent RNA splicing, particularly in hippocampal neurons. This allows neurons to rebuild functional proteins required for learning and memory, promoting true neuronal recovery.<\/p>\n<\/div>\n<div>\n<p class=\"faq-responsive\"><strong>Q: <span class=\"questions\">What is the safest way to support NAD+ levels?<\/span><\/strong><\/p>\n<p><strong>A: <\/strong>Modest, consistent niacinamide dosing, combined with adequate B vitamins, supports NAD+ production safely without disrupting methylation or increasing health risks.<\/p>\n<\/div>\n<\/div>\n<h2>Test Your Knowledge with Today&#8217;s Quiz!<\/h2>\n<p>Take today\u2019s quiz to see how much you\u2019ve learned from <a href=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/02\/16\/seed-oils-and-heart-disease-connection.aspx\" target=\"_blank\" rel=\"noopener\">yesterday\u2019s Mercola.com article<\/a>.<\/p>\n<div class=\"quiz-panel\">\n<div class=\"quiz-item\">\n<p class=\"title\"><span>Which type of oil supplies linoleic acid that accumulates in tissues and drives inflammation?<\/span>\n <\/p>\n<ul class=\"options\">\n<li class=\"option-item correct\">\n  <span>Seed oils<\/span><br \/>\n  <span class=\"explanation\"><\/p>\n<p>Seed oils are rich in linoleic acid, which oxidizes easily, builds up in tissues, and fuels inflammatory damage inside arteries for years before symptoms appear. <a href=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/02\/16\/seed-oils-and-heart-disease-connection.aspx\" target=\"_blank\" rel=\"noopener\">Learn more.<\/a><\/p>\n<p>  <\/span>\n <\/li>\n<li class=\"option-item\"><span>Olive oil<\/span><\/li>\n<li class=\"option-item\"><span>Beef tallow<\/span><\/li>\n<li class=\"option-item\"><span>Ghee<\/span><\/li>\n<\/ul><\/div>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>Nicotinamide adenine dinucleotide (NAD+) may be one of the most overlooked factors when it comes to optimizing cellular health. It is a cellular coenzyme that plays a role in many metabolic and signaling reactions.<\/p>\n<p>For example, it partakes in redox reactions \u2014 chemical exchanges that transfer energy between molecules \u2014 which lead to the production of adenosine triphosphate (ATP), your body&#8217;s energy currency.1 In fact, research shows that a deficiency is linked to an array of conditions, such as sarcopenia and diabetes.2<\/p>\n<p>But that&#8217;s not all \u2014 Alzheimer&#8217;s disease, the most common form of dementia,3 has now been linked to declining NAD+ levels. Following this line of thought, emerging research shows that boosting NAD+ intake can reverse the progression of Alzheimer&#8217;s disease. This discovery could be one of the biggest breakthroughs in recent times, as most people believe that Alzheimer&#8217;s only worsens the longer it goes,4 and treatment focuses on slowing decline rather than reversing it.<\/p>\n<p>Video Link<\/p>\n<p>Restoring Brain Energy Reversed Advanced Alzheimer&#8217;s in Animal Models<\/p>\n<p>A study published in Cell Reports Medicine set out to discover how Alzheimer&#8217;s disease can be reversed by boosting NAD+ levels. For the experiment, the researchers used multiple mouse models of Alzheimer&#8217;s disease that already showed severe cognitive impairment, brain inflammation, tau pathology, and structural brain damage.5<\/p>\n<p>Mice were administered P7C3-A20 at a dosage of 10 milligrams (mg) per kilogram (kg) of weight each day. Analysis involved observing changes across behavior, brain chemistry, and physical brain structure. For context, P7C3-A20 is a carbazole compound that can readily cross the blood-brain barrier. It works by binding to NAMPT (an enzyme that controls how much NAD+ is made from niacinamide) to enhance NAD+ production6 at safe levels.<\/p>\n<p>\u2022 One striking finding is the rate of improvement \u2014 The authors reported that in treated mice, cognitive function recovered fully, meaning their memory performance returned to levels seen in healthy animals. These mice performed just as well as non-diseased controls on learning and memory tests.<\/p>\n<p>\u2022 What changed inside the brain samples \u2014 Multiple hallmarks of Alzheimer&#8217;s disease improved at the same time. Tau pathology, which refers to tangled protein structures that disrupt neuron function, decreased after NAD+ restoration. Neuroinflammation markers dropped, indicating a calmer immune environment in the brain. Signals of oxidative stress and DNA damage \u2014 both signs of energy failure inside cells \u2014 also declined.<\/p>\n<p>\u2022 Results were observed right away \u2014 The intervention occurred after the disease had fully developed in these animals. Again, this directly challenges the long-standing belief that Alzheimer&#8217;s damage becomes permanent once it crosses a certain threshold.<\/p>\n<p>\u2022 Other disease models were used to solidify the findings \u2014 The researchers tested the same approach in two different forms of Alzheimer&#8217;s pathology. In amyloid-driven mice and in tau-driven PS19 mice, restoring NAD+ reversed advanced disease features. That distinction matters because amyloid and tau represent different biological drivers of Alzheimer&#8217;s. Seeing improvement in both strengthens the argument that NAD+ disruption sits upstream of these visible brain lesions.<\/p>\n<p>\u2022 Blood biomarkers also benefited \u2014 Treated animals showed reduced levels of phosphorylated tau 217, a biomarker now used clinically to track Alzheimer&#8217;s severity. This helps bridge the gap between animal research and its implications for Alzheimer&#8217;s disease in humans.<\/p>\n<p>\u2022 At the center of all the changes is NAD+ homeostasis \u2014 NAD+ is required for cells to convert nutrients into usable energy and to repair daily damage to proteins and DNA. That said, the study found that Alzheimer&#8217;s disease severity correlated with how disrupted NAD+ balance became in the brain. In other words, as energy systems failed, disease features worsened and restoring that balance reversed the cascade.<\/p>\n<p>The researchers described this as a &#8220;resilience&#8221; model rather than a single-target approach. Instead of attacking amyloid alone or tau alone, restoring NAD+ stabilized multiple systems at once \u2014 energy production, inflammation control, blood-brain barrier integrity, and cellular repair. Thus, the findings reframe Alzheimer&#8217;s as a system-level energy failure rather than a mystery buildup of toxic debris in the brain.<\/p>\n<p>\u2022 Human relevance strengthened the findings further \u2014 Using human brain samples and sophisticated molecular analysis techniques, the authors reported that NAD+ disruption also tracked with Alzheimer&#8217;s severity in people. They identified overlapping biological nodes between mice and humans that responded to restored NAD+ balance.<\/p>\n<p>\u2022 Mechanistic explanation of the benefits \u2014 The paper explained that NAD+ acts as a central coordinator for enzymes involved in DNA repair, mitochondrial function, and stress resistance. When NAD+ levels fall, these systems stall. Neurons, which require constant energy, suffer first. Restoring NAD+ reactivated these pathways simultaneously.<\/p>\n<p>The study also highlighted why focusing solely on plaques has delivered limited success. Amyloid and tau accumulation appeared downstream of NAD+ disruption rather than as isolated causes. Once energy systems failed, the brain lost its ability to manage protein turnover, immune balance, and structural integrity. Fixing the upstream energy deficit corrected multiple downstream failures at once.<\/p>\n<p>From a practical standpoint, the findings support the idea that improving cellular energy changes the trajectory of Alzheimer&#8217;s disease rather than simply slowing damage. It shows that neurons under metabolic stress can recover when you address cellular energy production at its root.<\/p>\n<p>NAD+ Restores Memory by Rewriting Neuronal Instructions<\/p>\n<p>In a related study published in Science Advances, researchers examined how restoring NAD+ reverses Alzheimer&#8217;s features inside brain cells from a genetic perspective. Specifically, the researchers focused on gene regulation, which influences how neurons read and process instructions that control memory and brain resilience.7<\/p>\n<p>\u2022 Core findings of the analysis \u2014 Increasing NAD+ corrected widespread errors in gene instruction processing and restored memory performance, but only when a specific control protein, EVA1C, remained intact. When this was suppressed, the memory benefit disappeared, even with NAD+ restoration.<\/p>\n<p>Another important improvement that was observed is memory retention. Animals receiving NAD+ showed clear restoration of learning and recall ability, measured through standardized behavioral tests used in neuroscience research. When researchers interfered with EVA1C expression in the hippocampus, those gains vanished, even though NAD+ levels rose.<\/p>\n<p>\u2022 A deeper look into the mechanism at play \u2014 The study showed that NAD+ corrected abnormal alternative splicing events across many genes. For context, alternative splicing refers to how cells assemble genetic instructions before building proteins.<\/p>\n<p>Think of the process as editing a recipe. If the editing goes wrong, the cell produces dysfunctional proteins. In Alzheimer&#8217;s models, these editing errors appeared widespread. NAD+ restored normal editing patterns, but only through EVA1C.<\/p>\n<p>\u2022 The largest benefits appeared in hippocampal neurons \u2014 This is especially observed within the CA1 region. For context, the hippocampus is the brain&#8217;s memory hub, and CA1 neurons act as a relay station for forming and retrieving memories. When EVA1C levels dropped in this region, NAD+ no longer improved memory performance.<\/p>\n<p>\u2022 Comparisons between test variables \u2014 NAD+ alone improved memory only when EVA1C function remained intact. Meanwhile, EVA1C suppression alone worsened memory outcomes even when energy levels improved. This shows that NAD+ and EVA1C did not work independently \u2014 they functioned as a linked system, with EVA1C acting as the gatekeeper for the cognitive benefits of NAD+.<\/p>\n<p>The study also included human data. Researchers reported that EVA1C expression was reduced in the hippocampus of participants with Alzheimer&#8217;s disease compared to cognitively normal controls.<\/p>\n<p>\u2022 A closer analysis of the mechanisms involved \u2014 Ribonucleic acid (RNA) splicing determines which protein versions neurons produce. In Alzheimer&#8217;s disease, incorrect splicing led to dysfunctional proteins that weaken synapses and disrupt communication between brain cells. Now, NAD+ restored normal splicing patterns by regulating EVA1C activity, which stabilized protein production inside neurons.<\/p>\n<p>Again, the researchers emphasized that this process represented a form of resilience. Neurons did not simply slow deterioration \u2014 they regained the ability to produce functional proteins required for learning and memory.<\/p>\n<p>Before Boosting Levels, It&#8217;s Important to Get a Baseline<\/p>\n<p>Based on the findings, boosting NAD+ has enormous potential when it comes to managing Alzheimer&#8217;s disease. Hence, testing your current levels is important, as it would be wise not to take any supplement without proper direction or planning.<\/p>\n<p>\u2022 A new test will be launched in the future \u2014 I&#8217;m excited to introduce the upcoming Mitochondrial Wellness Test Kit, which is designed to offer you a current snapshot of your mitochondrial function. While this provides an overview, additional targeted testing may still be needed to fully understand the more intricate nuances of your health.<\/p>\n<p>\u2022 Existing NAD+ tests fall short \u2014 NAD+ is highly unstable once it&#8217;s outside the cells and degrades quickly, making reliable measurement difficult. To maintain accuracy, it requires immediate processing and advanced laboratory methods.<\/p>\n<p>In practice, this means blood samples need to be collected and analyzed rapidly within the same research facility, which is not possible at most clinics. Moreover, transporting samples between labs further compromises integrity. Despite these obstacles, my team and I have remained committed to advancing practical health testing for everyone.<\/p>\n<p>\u2022 A higher standard for NAD+ assessment \u2014 Mercola Labs is developing a novel solution that avoids the pitfalls of measuring NAD+. Instead, we assess NAD+ levels by analyzing redox balance among these essential biomarkers \u2014 acetoacetate and beta-hydroxybutyrate, lactate and pyruvate, and the oxidized and reduced forms of glutathione. Additional details will be shared closer to release.<\/p>\n<p>Niacinamide Supports NAD+ Production<\/p>\n<p>Taking niacinamide is a convenient way of boosting your NAD+ levels. However, this approach calls for precision and balance \u2014 the reason why I encourage proper testing. While high doses have shown benefits in clinical settings, smaller and consistent amounts are far more appropriate for everyday use. This approach supports mitochondrial and metabolic function without placing unnecessary stress on the body, since excessive intake can disrupt methylation pathways and raise the risk of adverse events over time.<\/p>\n<p>\u2022 Take small, evenly distributed daily doses \u2014 For daily support, take 50 milligrams of niacinamide three times per day. This modest dose supports NAD+ production without the risks associated with high-dose vitamin B3 supplementation. You can even divide it into four servings per day. Take one dose upon waking, one before bed, and space the remaining doses evenly throughout the day.<\/p>\n<p>\u2022 Excessive B3 intake can be counterproductive \u2014 Taking too much vitamin B3, whether as niacin or niacinamide, will lead to negative outcomes. Research cited by the Cleveland Clinic indicates that high doses can increase cardiovascular risk.8 Although both compounds are forms of vitamin B3, niacin does not activate NAMPT the way niacinamide does, making niacinamide the preferred option.<\/p>\n<p>\u2022 Don&#8217;t forget the other B vitamins \u2014 Adequate intake of other B vitamins is essential for overall health and mitochondrial function, particularly niacin, riboflavin, and folate. Suboptimal mitochondrial health is often linked to B-vitamin deficiencies,9 which can typically be corrected with a low-dose, high-quality B-complex supplement.<\/p>\n<p>When it comes to food sources, vitamin B3 is abundant in grass fed beef and mushrooms.10 Vitamin B6 is found in grass fed beef, potatoes, and bananas.11 Folate (vitamin B9) is plentiful in spinach, broccoli, and asparagus,12 while vitamin B12 is concentrated in foods such as grass fed beef liver, wild rainbow trout, and wild sockeye salmon.<\/p>\n<p>Frequently Asked Questions (FAQs) About NAD+ and Its Link to Alzheimer&#8217;s Disease<\/p>\n<p>Q: What is NAD+ and why is it essential for cellular and brain health?<br \/>\nA: NAD+ is a core cellular coenzyme required for energy production, mitochondrial function, DNA repair, and metabolic signaling. Low NAD+ levels impair cellular energy and are linked to aging, metabolic disease, and neurodegeneration.<\/p>\n<p>Q: How is NAD+ connected to Alzheimer&#8217;s disease progression?<br \/>\nA: Research shows Alzheimer&#8217;s disease severity correlates with disrupted NAD+ balance. Declining NAD+ levels impairs neuronal energy, repair, and resilience, suggesting the condition is driven by upstream energy failure rather than plaque buildup alone.<\/p>\n<p>Q: Can restoring NAD+ reverse Alzheimer&#8217;s-related damage?<br \/>\nA: In advanced animal models, restoring NAD+ led to full cognitive recovery, reduced inflammation, improved tau pathology, and lower blood biomarkers, even after severe disease was established, challenging the idea of irreversible damage.<\/p>\n<p>Q: How does NAD+ improve memory at a genetic and cellular level?<br \/>\nA: NAD+ restores proper gene instruction processing through EVA1C-dependent RNA splicing, particularly in hippocampal neurons. This allows neurons to rebuild functional proteins required for learning and memory, promoting true neuronal recovery.<\/p>\n<p>Q: What is the safest way to support NAD+ levels?<br \/>\nA: Modest, consistent niacinamide dosing, combined with adequate B vitamins, supports NAD+ production safely without disrupting methylation or increasing health risks.<\/p>\n<p>Test Your Knowledge with Today&#8217;s Quiz!<\/p>\n<p>Take today\u2019s quiz to see how much you\u2019ve learned from yesterday\u2019s Mercola.com article.<\/p>\n<p> Which type of oil supplies linoleic acid that accumulates in tissues and drives inflammation?<\/p>\n<p> Seed oils<\/p>\n<p> Seed oils are rich in linoleic acid, which oxidizes easily, builds up in tissues, and fuels inflammatory damage inside arteries for years before symptoms appear. Learn more.<\/p>\n<p> Olive oil<br \/>\n Beef tallow<br \/>\n Ghee<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"close","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"seo_booster_metabox":"","footnotes":""},"categories":[3562,3892],"tags":[],"class_list":["post-163260","post","type-post","status-publish","format-standard","hentry","category-baptism-confirmation","category-dr-mercola-daily-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>This Small Molecule Reverses Alzheimer\u2019s Disease Progression, Study Shows - Watchman News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/02\/17\/nad-reverses-alzheimers-progression.aspx\" \/>\n<meta property=\"og:locale\" content=\"uk_UA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"This Small Molecule Reverses Alzheimer\u2019s Disease Progression, Study Shows - Watchman News\" \/>\n<meta property=\"og:description\" content=\"Nicotinamide adenine dinucleotide (NAD+) may be one of the most overlooked factors when it comes to optimizing cellular health. It is a cellular coenzyme that plays a role in many metabolic and signaling reactions.  For example, it partakes in redox reactions \u2014 chemical exchanges that transfer energy between molecules \u2014 which lead to the production of adenosine triphosphate (ATP), your body&#039;s energy currency.1 In fact, research shows that a deficiency is linked to an array of conditions, such as sarcopenia and diabetes.2  But that&#039;s not all \u2014 Alzheimer&#039;s disease, the most common form of dementia,3 has now been linked to declining NAD+ levels. Following this line of thought, emerging research shows that boosting NAD+ intake can reverse the progression of Alzheimer&#039;s disease. This discovery could be one of the biggest breakthroughs in recent times, as most people believe that Alzheimer&#039;s only worsens the longer it goes,4 and treatment focuses on slowing decline rather than reversing it.       Video Link      Restoring Brain Energy Reversed Advanced Alzheimer&#039;s in Animal Models  A study published in Cell Reports Medicine set out to discover how Alzheimer&#039;s disease can be reversed by boosting NAD+ levels. For the experiment, the researchers used multiple mouse models of Alzheimer&#039;s disease that already showed severe cognitive impairment, brain inflammation, tau pathology, and structural brain damage.5  Mice were administered P7C3-A20 at a dosage of 10 milligrams (mg) per kilogram (kg) of weight each day. Analysis involved observing changes across behavior, brain chemistry, and physical brain structure. For context, P7C3-A20 is a carbazole compound that can readily cross the blood-brain barrier. It works by binding to NAMPT (an enzyme that controls how much NAD+ is made from niacinamide) to enhance NAD+ production6 at safe levels.   \u2022 One striking finding is the rate of improvement \u2014 The authors reported that in treated mice, cognitive function recovered fully, meaning their memory performance returned to levels seen in healthy animals. These mice performed just as well as non-diseased controls on learning and memory tests.  \u2022 What changed inside the brain samples \u2014 Multiple hallmarks of Alzheimer&#039;s disease improved at the same time. Tau pathology, which refers to tangled protein structures that disrupt neuron function, decreased after NAD+ restoration. Neuroinflammation markers dropped, indicating a calmer immune environment in the brain. Signals of oxidative stress and DNA damage \u2014 both signs of energy failure inside cells \u2014 also declined.  \u2022 Results were observed right away \u2014 The intervention occurred after the disease had fully developed in these animals. Again, this directly challenges the long-standing belief that Alzheimer&#039;s damage becomes permanent once it crosses a certain threshold.  \u2022 Other disease models were used to solidify the findings \u2014 The researchers tested the same approach in two different forms of Alzheimer&#039;s pathology. In amyloid-driven mice and in tau-driven PS19 mice, restoring NAD+ reversed advanced disease features. That distinction matters because amyloid and tau represent different biological drivers of Alzheimer&#039;s. Seeing improvement in both strengthens the argument that NAD+ disruption sits upstream of these visible brain lesions.  \u2022 Blood biomarkers also benefited \u2014 Treated animals showed reduced levels of phosphorylated tau 217, a biomarker now used clinically to track Alzheimer&#039;s severity. This helps bridge the gap between animal research and its implications for Alzheimer&#039;s disease in humans.  \u2022 At the center of all the changes is NAD+ homeostasis \u2014 NAD+ is required for cells to convert nutrients into usable energy and to repair daily damage to proteins and DNA. That said, the study found that Alzheimer&#039;s disease severity correlated with how disrupted NAD+ balance became in the brain. In other words, as energy systems failed, disease features worsened and restoring that balance reversed the cascade.  The researchers described this as a &quot;resilience&quot; model rather than a single-target approach. Instead of attacking amyloid alone or tau alone, restoring NAD+ stabilized multiple systems at once \u2014 energy production, inflammation control, blood-brain barrier integrity, and cellular repair. Thus, the findings reframe Alzheimer&#039;s as a system-level energy failure rather than a mystery buildup of toxic debris in the brain.  \u2022 Human relevance strengthened the findings further \u2014 Using human brain samples and sophisticated molecular analysis techniques, the authors reported that NAD+ disruption also tracked with Alzheimer&#039;s severity in people. They identified overlapping biological nodes between mice and humans that responded to restored NAD+ balance.  \u2022 Mechanistic explanation of the benefits \u2014 The paper explained that NAD+ acts as a central coordinator for enzymes involved in DNA repair, mitochondrial function, and stress resistance. When NAD+ levels fall, these systems stall. Neurons, which require constant energy, suffer first. Restoring NAD+ reactivated these pathways simultaneously.  The study also highlighted why focusing solely on plaques has delivered limited success. Amyloid and tau accumulation appeared downstream of NAD+ disruption rather than as isolated causes. Once energy systems failed, the brain lost its ability to manage protein turnover, immune balance, and structural integrity. Fixing the upstream energy deficit corrected multiple downstream failures at once.   From a practical standpoint, the findings support the idea that improving cellular energy changes the trajectory of Alzheimer&#039;s disease rather than simply slowing damage. It shows that neurons under metabolic stress can recover when you address cellular energy production at its root.   NAD+ Restores Memory by Rewriting Neuronal Instructions  In a related study published in Science Advances, researchers examined how restoring NAD+ reverses Alzheimer&#039;s features inside brain cells from a genetic perspective. Specifically, the researchers focused on gene regulation, which influences how neurons read and process instructions that control memory and brain resilience.7   \u2022 Core findings of the analysis \u2014 Increasing NAD+ corrected widespread errors in gene instruction processing and restored memory performance, but only when a specific control protein, EVA1C, remained intact. When this was suppressed, the memory benefit disappeared, even with NAD+ restoration.  Another important improvement that was observed is memory retention. Animals receiving NAD+ showed clear restoration of learning and recall ability, measured through standardized behavioral tests used in neuroscience research. When researchers interfered with EVA1C expression in the hippocampus, those gains vanished, even though NAD+ levels rose.  \u2022 A deeper look into the mechanism at play \u2014 The study showed that NAD+ corrected abnormal alternative splicing events across many genes. For context, alternative splicing refers to how cells assemble genetic instructions before building proteins.  Think of the process as editing a recipe. If the editing goes wrong, the cell produces dysfunctional proteins. In Alzheimer&#039;s models, these editing errors appeared widespread. NAD+ restored normal editing patterns, but only through EVA1C.  \u2022 The largest benefits appeared in hippocampal neurons \u2014 This is especially observed within the CA1 region. For context, the hippocampus is the brain&#039;s memory hub, and CA1 neurons act as a relay station for forming and retrieving memories. When EVA1C levels dropped in this region, NAD+ no longer improved memory performance.  \u2022 Comparisons between test variables \u2014 NAD+ alone improved memory only when EVA1C function remained intact. Meanwhile, EVA1C suppression alone worsened memory outcomes even when energy levels improved. This shows that NAD+ and EVA1C did not work independently \u2014 they functioned as a linked system, with EVA1C acting as the gatekeeper for the cognitive benefits of NAD+.  The study also included human data. Researchers reported that EVA1C expression was reduced in the hippocampus of participants with Alzheimer&#039;s disease compared to cognitively normal controls.  \u2022 A closer analysis of the mechanisms involved \u2014 Ribonucleic acid (RNA) splicing determines which protein versions neurons produce. In Alzheimer&#039;s disease, incorrect splicing led to dysfunctional proteins that weaken synapses and disrupt communication between brain cells. Now, NAD+ restored normal splicing patterns by regulating EVA1C activity, which stabilized protein production inside neurons.  Again, the researchers emphasized that this process represented a form of resilience. Neurons did not simply slow deterioration \u2014 they regained the ability to produce functional proteins required for learning and memory.    Before Boosting Levels, It&#039;s Important to Get a Baseline  Based on the findings, boosting NAD+ has enormous potential when it comes to managing Alzheimer&#039;s disease. Hence, testing your current levels is important, as it would be wise not to take any supplement without proper direction or planning.   \u2022 A new test will be launched in the future \u2014 I&#039;m excited to introduce the upcoming Mitochondrial Wellness Test Kit, which is designed to offer you a current snapshot of your mitochondrial function. While this provides an overview, additional targeted testing may still be needed to fully understand the more intricate nuances of your health.  \u2022 Existing NAD+ tests fall short \u2014 NAD+ is highly unstable once it&#039;s outside the cells and degrades quickly, making reliable measurement difficult. To maintain accuracy, it requires immediate processing and advanced laboratory methods.  In practice, this means blood samples need to be collected and analyzed rapidly within the same research facility, which is not possible at most clinics. Moreover, transporting samples between labs further compromises integrity. Despite these obstacles, my team and I have remained committed to advancing practical health testing for everyone.  \u2022 A higher standard for NAD+ assessment \u2014 Mercola Labs is developing a novel solution that avoids the pitfalls of measuring NAD+. Instead, we assess NAD+ levels by analyzing redox balance among these essential biomarkers \u2014 acetoacetate and beta-hydroxybutyrate, lactate and pyruvate, and the oxidized and reduced forms of glutathione. Additional details will be shared closer to release.    Niacinamide Supports NAD+ Production  Taking niacinamide is a convenient way of boosting your NAD+ levels. However, this approach calls for precision and balance \u2014 the reason why I encourage proper testing. While high doses have shown benefits in clinical settings, smaller and consistent amounts are far more appropriate for everyday use. This approach supports mitochondrial and metabolic function without placing unnecessary stress on the body, since excessive intake can disrupt methylation pathways and raise the risk of adverse events over time.   \u2022 Take small, evenly distributed daily doses \u2014 For daily support, take 50 milligrams of niacinamide three times per day. This modest dose supports NAD+ production without the risks associated with high-dose vitamin B3 supplementation. You can even divide it into four servings per day. Take one dose upon waking, one before bed, and space the remaining doses evenly throughout the day.  \u2022 Excessive B3 intake can be counterproductive \u2014 Taking too much vitamin B3, whether as niacin or niacinamide, will lead to negative outcomes. Research cited by the Cleveland Clinic indicates that high doses can increase cardiovascular risk.8 Although both compounds are forms of vitamin B3, niacin does not activate NAMPT the way niacinamide does, making niacinamide the preferred option.  \u2022 Don&#039;t forget the other B vitamins \u2014 Adequate intake of other B vitamins is essential for overall health and mitochondrial function, particularly niacin, riboflavin, and folate. Suboptimal mitochondrial health is often linked to B-vitamin deficiencies,9 which can typically be corrected with a low-dose, high-quality B-complex supplement.  When it comes to food sources, vitamin B3 is abundant in grass fed beef and mushrooms.10 Vitamin B6 is found in grass fed beef, potatoes, and bananas.11 Folate (vitamin B9) is plentiful in spinach, broccoli, and asparagus,12 while vitamin B12 is concentrated in foods such as grass fed beef liver, wild rainbow trout, and wild sockeye salmon.    Frequently Asked Questions (FAQs) About NAD+ and Its Link to Alzheimer&#039;s Disease    Q: What is NAD+ and why is it essential for cellular and brain health? A: NAD+ is a core cellular coenzyme required for energy production, mitochondrial function, DNA repair, and metabolic signaling. Low NAD+ levels impair cellular energy and are linked to aging, metabolic disease, and neurodegeneration.    Q: How is NAD+ connected to Alzheimer&#039;s disease progression? A: Research shows Alzheimer&#039;s disease severity correlates with disrupted NAD+ balance. Declining NAD+ levels impairs neuronal energy, repair, and resilience, suggesting the condition is driven by upstream energy failure rather than plaque buildup alone.    Q: Can restoring NAD+ reverse Alzheimer&#039;s-related damage? A: In advanced animal models, restoring NAD+ led to full cognitive recovery, reduced inflammation, improved tau pathology, and lower blood biomarkers, even after severe disease was established, challenging the idea of irreversible damage.    Q: How does NAD+ improve memory at a genetic and cellular level? A: NAD+ restores proper gene instruction processing through EVA1C-dependent RNA splicing, particularly in hippocampal neurons. This allows neurons to rebuild functional proteins required for learning and memory, promoting true neuronal recovery.    Q: What is the safest way to support NAD+ levels? A: Modest, consistent niacinamide dosing, combined with adequate B vitamins, supports NAD+ production safely without disrupting methylation or increasing health risks.     Test Your Knowledge with Today&#039;s Quiz!  Take today\u2019s quiz to see how much you\u2019ve learned from yesterday\u2019s Mercola.com article.      Which type of oil supplies linoleic acid that accumulates in tissues and drives inflammation?      Seed oils   Seed oils are rich in linoleic acid, which oxidizes easily, builds up in tissues, and fuels inflammatory damage inside arteries for years before symptoms appear. Learn more.     Olive oil  Beef tallow  Ghee\" \/>\n<meta property=\"og:url\" content=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/02\/17\/nad-reverses-alzheimers-progression.aspx\" \/>\n<meta property=\"og:site_name\" content=\"Watchman News\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-17T00:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-21T05:42:51+00:00\" \/>\n<meta name=\"author\" content=\"Admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u041d\u0430\u043f\u0438\u0441\u0430\u043d\u043e\" \/>\n\t<meta name=\"twitter:data1\" content=\"Admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u041f\u0440\u0438\u0431\u043b. \u0447\u0430\u0441 \u0447\u0438\u0442\u0430\u043d\u043d\u044f\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 \u0445\u0432\u0438\u043b\u0438\u043d\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/02\/17\/nad-reverses-alzheimers-progression.aspx#article\",\"isPartOf\":{\"@id\":\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/02\/17\/nad-reverses-alzheimers-progression.aspx\"},\"author\":{\"name\":\"Admin\",\"@id\":\"https:\/\/watchman.news\/#\/schema\/person\/3f4506c6002f5893ba45478a4540739f\"},\"headline\":\"This Small Molecule Reverses Alzheimer\u2019s Disease Progression, Study Shows\",\"datePublished\":\"2026-02-17T00:00:00+00:00\",\"dateModified\":\"2026-02-21T05:42:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/02\/17\/nad-reverses-alzheimers-progression.aspx\"},\"wordCount\":2131,\"articleSection\":[\"Baptism &amp; 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It is a cellular coenzyme that plays a role in many metabolic and signaling reactions.  For example, it partakes in redox reactions \u2014 chemical exchanges that transfer energy between molecules \u2014 which lead to the production of adenosine triphosphate (ATP), your body's energy currency.1 In fact, research shows that a deficiency is linked to an array of conditions, such as sarcopenia and diabetes.2  But that's not all \u2014 Alzheimer's disease, the most common form of dementia,3 has now been linked to declining NAD+ levels. Following this line of thought, emerging research shows that boosting NAD+ intake can reverse the progression of Alzheimer's disease. This discovery could be one of the biggest breakthroughs in recent times, as most people believe that Alzheimer's only worsens the longer it goes,4 and treatment focuses on slowing decline rather than reversing it.       Video Link      Restoring Brain Energy Reversed Advanced Alzheimer's in Animal Models  A study published in Cell Reports Medicine set out to discover how Alzheimer's disease can be reversed by boosting NAD+ levels. For the experiment, the researchers used multiple mouse models of Alzheimer's disease that already showed severe cognitive impairment, brain inflammation, tau pathology, and structural brain damage.5  Mice were administered P7C3-A20 at a dosage of 10 milligrams (mg) per kilogram (kg) of weight each day. Analysis involved observing changes across behavior, brain chemistry, and physical brain structure. For context, P7C3-A20 is a carbazole compound that can readily cross the blood-brain barrier. It works by binding to NAMPT (an enzyme that controls how much NAD+ is made from niacinamide) to enhance NAD+ production6 at safe levels.   \u2022 One striking finding is the rate of improvement \u2014 The authors reported that in treated mice, cognitive function recovered fully, meaning their memory performance returned to levels seen in healthy animals. These mice performed just as well as non-diseased controls on learning and memory tests.  \u2022 What changed inside the brain samples \u2014 Multiple hallmarks of Alzheimer's disease improved at the same time. Tau pathology, which refers to tangled protein structures that disrupt neuron function, decreased after NAD+ restoration. Neuroinflammation markers dropped, indicating a calmer immune environment in the brain. Signals of oxidative stress and DNA damage \u2014 both signs of energy failure inside cells \u2014 also declined.  \u2022 Results were observed right away \u2014 The intervention occurred after the disease had fully developed in these animals. Again, this directly challenges the long-standing belief that Alzheimer's damage becomes permanent once it crosses a certain threshold.  \u2022 Other disease models were used to solidify the findings \u2014 The researchers tested the same approach in two different forms of Alzheimer's pathology. In amyloid-driven mice and in tau-driven PS19 mice, restoring NAD+ reversed advanced disease features. That distinction matters because amyloid and tau represent different biological drivers of Alzheimer's. Seeing improvement in both strengthens the argument that NAD+ disruption sits upstream of these visible brain lesions.  \u2022 Blood biomarkers also benefited \u2014 Treated animals showed reduced levels of phosphorylated tau 217, a biomarker now used clinically to track Alzheimer's severity. This helps bridge the gap between animal research and its implications for Alzheimer's disease in humans.  \u2022 At the center of all the changes is NAD+ homeostasis \u2014 NAD+ is required for cells to convert nutrients into usable energy and to repair daily damage to proteins and DNA. That said, the study found that Alzheimer's disease severity correlated with how disrupted NAD+ balance became in the brain. In other words, as energy systems failed, disease features worsened and restoring that balance reversed the cascade.  The researchers described this as a \"resilience\" model rather than a single-target approach. Instead of attacking amyloid alone or tau alone, restoring NAD+ stabilized multiple systems at once \u2014 energy production, inflammation control, blood-brain barrier integrity, and cellular repair. Thus, the findings reframe Alzheimer's as a system-level energy failure rather than a mystery buildup of toxic debris in the brain.  \u2022 Human relevance strengthened the findings further \u2014 Using human brain samples and sophisticated molecular analysis techniques, the authors reported that NAD+ disruption also tracked with Alzheimer's severity in people. They identified overlapping biological nodes between mice and humans that responded to restored NAD+ balance.  \u2022 Mechanistic explanation of the benefits \u2014 The paper explained that NAD+ acts as a central coordinator for enzymes involved in DNA repair, mitochondrial function, and stress resistance. When NAD+ levels fall, these systems stall. Neurons, which require constant energy, suffer first. Restoring NAD+ reactivated these pathways simultaneously.  The study also highlighted why focusing solely on plaques has delivered limited success. Amyloid and tau accumulation appeared downstream of NAD+ disruption rather than as isolated causes. Once energy systems failed, the brain lost its ability to manage protein turnover, immune balance, and structural integrity. Fixing the upstream energy deficit corrected multiple downstream failures at once.   From a practical standpoint, the findings support the idea that improving cellular energy changes the trajectory of Alzheimer's disease rather than simply slowing damage. It shows that neurons under metabolic stress can recover when you address cellular energy production at its root.   NAD+ Restores Memory by Rewriting Neuronal Instructions  In a related study published in Science Advances, researchers examined how restoring NAD+ reverses Alzheimer's features inside brain cells from a genetic perspective. Specifically, the researchers focused on gene regulation, which influences how neurons read and process instructions that control memory and brain resilience.7   \u2022 Core findings of the analysis \u2014 Increasing NAD+ corrected widespread errors in gene instruction processing and restored memory performance, but only when a specific control protein, EVA1C, remained intact. When this was suppressed, the memory benefit disappeared, even with NAD+ restoration.  Another important improvement that was observed is memory retention. Animals receiving NAD+ showed clear restoration of learning and recall ability, measured through standardized behavioral tests used in neuroscience research. When researchers interfered with EVA1C expression in the hippocampus, those gains vanished, even though NAD+ levels rose.  \u2022 A deeper look into the mechanism at play \u2014 The study showed that NAD+ corrected abnormal alternative splicing events across many genes. For context, alternative splicing refers to how cells assemble genetic instructions before building proteins.  Think of the process as editing a recipe. If the editing goes wrong, the cell produces dysfunctional proteins. In Alzheimer's models, these editing errors appeared widespread. NAD+ restored normal editing patterns, but only through EVA1C.  \u2022 The largest benefits appeared in hippocampal neurons \u2014 This is especially observed within the CA1 region. For context, the hippocampus is the brain's memory hub, and CA1 neurons act as a relay station for forming and retrieving memories. When EVA1C levels dropped in this region, NAD+ no longer improved memory performance.  \u2022 Comparisons between test variables \u2014 NAD+ alone improved memory only when EVA1C function remained intact. Meanwhile, EVA1C suppression alone worsened memory outcomes even when energy levels improved. This shows that NAD+ and EVA1C did not work independently \u2014 they functioned as a linked system, with EVA1C acting as the gatekeeper for the cognitive benefits of NAD+.  The study also included human data. Researchers reported that EVA1C expression was reduced in the hippocampus of participants with Alzheimer's disease compared to cognitively normal controls.  \u2022 A closer analysis of the mechanisms involved \u2014 Ribonucleic acid (RNA) splicing determines which protein versions neurons produce. In Alzheimer's disease, incorrect splicing led to dysfunctional proteins that weaken synapses and disrupt communication between brain cells. Now, NAD+ restored normal splicing patterns by regulating EVA1C activity, which stabilized protein production inside neurons.  Again, the researchers emphasized that this process represented a form of resilience. Neurons did not simply slow deterioration \u2014 they regained the ability to produce functional proteins required for learning and memory.    Before Boosting Levels, It's Important to Get a Baseline  Based on the findings, boosting NAD+ has enormous potential when it comes to managing Alzheimer's disease. Hence, testing your current levels is important, as it would be wise not to take any supplement without proper direction or planning.   \u2022 A new test will be launched in the future \u2014 I'm excited to introduce the upcoming Mitochondrial Wellness Test Kit, which is designed to offer you a current snapshot of your mitochondrial function. While this provides an overview, additional targeted testing may still be needed to fully understand the more intricate nuances of your health.  \u2022 Existing NAD+ tests fall short \u2014 NAD+ is highly unstable once it's outside the cells and degrades quickly, making reliable measurement difficult. To maintain accuracy, it requires immediate processing and advanced laboratory methods.  In practice, this means blood samples need to be collected and analyzed rapidly within the same research facility, which is not possible at most clinics. Moreover, transporting samples between labs further compromises integrity. Despite these obstacles, my team and I have remained committed to advancing practical health testing for everyone.  \u2022 A higher standard for NAD+ assessment \u2014 Mercola Labs is developing a novel solution that avoids the pitfalls of measuring NAD+. Instead, we assess NAD+ levels by analyzing redox balance among these essential biomarkers \u2014 acetoacetate and beta-hydroxybutyrate, lactate and pyruvate, and the oxidized and reduced forms of glutathione. Additional details will be shared closer to release.    Niacinamide Supports NAD+ Production  Taking niacinamide is a convenient way of boosting your NAD+ levels. However, this approach calls for precision and balance \u2014 the reason why I encourage proper testing. While high doses have shown benefits in clinical settings, smaller and consistent amounts are far more appropriate for everyday use. This approach supports mitochondrial and metabolic function without placing unnecessary stress on the body, since excessive intake can disrupt methylation pathways and raise the risk of adverse events over time.   \u2022 Take small, evenly distributed daily doses \u2014 For daily support, take 50 milligrams of niacinamide three times per day. This modest dose supports NAD+ production without the risks associated with high-dose vitamin B3 supplementation. You can even divide it into four servings per day. Take one dose upon waking, one before bed, and space the remaining doses evenly throughout the day.  \u2022 Excessive B3 intake can be counterproductive \u2014 Taking too much vitamin B3, whether as niacin or niacinamide, will lead to negative outcomes. Research cited by the Cleveland Clinic indicates that high doses can increase cardiovascular risk.8 Although both compounds are forms of vitamin B3, niacin does not activate NAMPT the way niacinamide does, making niacinamide the preferred option.  \u2022 Don't forget the other B vitamins \u2014 Adequate intake of other B vitamins is essential for overall health and mitochondrial function, particularly niacin, riboflavin, and folate. Suboptimal mitochondrial health is often linked to B-vitamin deficiencies,9 which can typically be corrected with a low-dose, high-quality B-complex supplement.  When it comes to food sources, vitamin B3 is abundant in grass fed beef and mushrooms.10 Vitamin B6 is found in grass fed beef, potatoes, and bananas.11 Folate (vitamin B9) is plentiful in spinach, broccoli, and asparagus,12 while vitamin B12 is concentrated in foods such as grass fed beef liver, wild rainbow trout, and wild sockeye salmon.    Frequently Asked Questions (FAQs) About NAD+ and Its Link to Alzheimer's Disease    Q: What is NAD+ and why is it essential for cellular and brain health? A: NAD+ is a core cellular coenzyme required for energy production, mitochondrial function, DNA repair, and metabolic signaling. Low NAD+ levels impair cellular energy and are linked to aging, metabolic disease, and neurodegeneration.    Q: How is NAD+ connected to Alzheimer's disease progression? A: Research shows Alzheimer's disease severity correlates with disrupted NAD+ balance. Declining NAD+ levels impairs neuronal energy, repair, and resilience, suggesting the condition is driven by upstream energy failure rather than plaque buildup alone.    Q: Can restoring NAD+ reverse Alzheimer's-related damage? A: In advanced animal models, restoring NAD+ led to full cognitive recovery, reduced inflammation, improved tau pathology, and lower blood biomarkers, even after severe disease was established, challenging the idea of irreversible damage.    Q: How does NAD+ improve memory at a genetic and cellular level? A: NAD+ restores proper gene instruction processing through EVA1C-dependent RNA splicing, particularly in hippocampal neurons. This allows neurons to rebuild functional proteins required for learning and memory, promoting true neuronal recovery.    Q: What is the safest way to support NAD+ levels? A: Modest, consistent niacinamide dosing, combined with adequate B vitamins, supports NAD+ production safely without disrupting methylation or increasing health risks.     Test Your Knowledge with Today's Quiz!  Take today\u2019s quiz to see how much you\u2019ve learned from yesterday\u2019s Mercola.com article.      Which type of oil supplies linoleic acid that accumulates in tissues and drives inflammation?      Seed oils   Seed oils are rich in linoleic acid, which oxidizes easily, builds up in tissues, and fuels inflammatory damage inside arteries for years before symptoms appear. Learn more.     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