1How does glucagon-like peptide-1 (GLP-1) help regulate blood sugar?
It lowers insulin production
It blocks glucose absorption
It controls blood sugar
Glucagon-like peptide-1 (GLP-1) is a hormone that signals fullness after eating and helps regulate blood sugar levels. Learn more.
It speeds up digestion
2Which of the following is not a symptom of inflammatory bowel disease (IBD)?
Hot flushes
IBD commonly causes abdominal pain, diarrhea, fatigue, and weight loss. Hot flushes are not a typical symptom. Learn more.
Abdominal pain
Diarrhea
Weight loss
3What role do healthy fat cells play in the body?
They only store excess calories for later use
They store fats and prevent damage to organs
Healthy fat cells act as a metabolic buffer, storing unstable fats safely so they don’t circulate in the bloodstream and damage organs and tissues. Learn more.
They remove all fats from the bloodstream
They stop the body from producing new fat
4What is another name for the brain’s immune cells?
Neurons
Astrocytes
Synapses
Microglia
Microglia are the brain’s immune cells. They help protect the brain, but poor diet can impair their energy production. Learn more.
5What is one effect of long-term carbohydrate restriction on the body?
Reduced efficiency of cellular energy production
Limiting carbohydrates for long periods can slow metabolism and reduce mitochondrial energy output. Learn more.
Improved mitochondrial performance in most adults
Faster metabolism that eventually causes body fat loss
Protein fully replaces the need for carbohydrates
6How many servings of flavonoid-rich foods are linked to better mood?
Three servings per day
Eating around three servings daily of flavonoid-rich foods like berries, apples, and citrus is linked to improved mood and long-term emotional stability. Learn more.
One cup of the same fruit a day
Five servings of fruit blended with plant-based milk
Five servings of fruit with a dusting of organic sugar
7How can you get more collagen from eating fish?
Removing the skin before cooking
Keeping the skin on the fish
Fish skin is rich in Type I collagen. Keeping and eating the skin, especially on fatty fish, helps increase collagen intake. Learn more.
Cooking fish at lower temperatures only
Eating only lean cuts of fish
Test Your Knowledge with
The Master Level Quiz
1Which of the following is NOT a glucagon-like peptide-1 (GLP-1) weight-loss drug?
Ozempic
Wegovy
Mounjaro
Xenical
Xenical or Orlistat blocks fat absorption, while glucagon-like peptide-1 (GLP-1) drugs act on appetite and blood sugar regulation. Learn more.
2What is the fatty, waxy substance found in every cell of the body?
Glucose
Cholesterol
Cholesterol is a waxy fat-like substance present in all cells. Most of it is made by the body, mainly in the liver, while a smaller portion comes from food. Learn more.
Protein
Calcium
3What was the most common issue reported in lawsuits involving GLP-1 drugs?
Digestive injury
Most lawsuits involve digestive problems, especially gastroparesis, where the stomach slows or stops moving food properly. Learn more.
Skin irritation
Vision problems
Muscle weakness
4Which foods help support beneficial gut bacteria like Akkermansia muciniphila?
Processed snacks and sugary drinks
Fried foods (made with healthy oils) and refined grains
Polyphenol-rich fruits and inulin-containing foods
Foods like berries, garlic, and asparagus provide compounds that support beneficial gut bacteria and help maintain a healthy microbiome. Learn more.
Natural sweeteners and homemade smoothies
5What elements make up baking soda?
Sodium, calcium, oxygen, and nitrogen
Sodium, hydrogen, carbon, and oxygen
Baking soda, or sodium bicarbonate (NaHCO₃), is made of sodium, hydrogen, carbon, and oxygen. It helps maintain pH balance. Learn more.
Carbon, oxygen, nitrogen, and sulfur
Hydrogen, oxygen, calcium, and potassium
6Where is most of the klotho protein produced in the human body?
Liver
Kidneys
Klotho is produced mainly in the kidneys and also in the brain. It helps reduce inflammation and supports healthy aging, brain function, and tissue repair. Learn more.
Heart
Lungs
7Why do aggressive diets increase metabolic stress?
They release large amounts of stored fats into the bloodstream at once
Extreme dieting speeds up fat breakdown, releasing large amounts of stored fats at once, which increases inflammation and metabolic stress. Learn more.
They improve fat processing by making a person sweat more, leading to fat loss
They lower energy demand and slow metabolic activity in the body
They prevent fat from being used as fuel during energy production
8Which cells in the gut are responsible for producing protective mucus?
Stem cells
Immune cells
Epithelial cells
Goblet cells
Goblet cells produce mucus that protects the gut lining. When these cells are reduced, the intestinal barrier weakens. Learn more.
9Which waste materials does the brain need to clear to stay healthy?
Calcium and sodium
Glucose and oxygen
Beta-amyloid and tau proteins
The brain clears beta-amyloid and tau proteins through the glymphatic system. Buildup of these wastes is linked to neurological diseases like Alzheimer’s. Learn more.
Cholesterol and fatty acids
10What term describes a cell’s ability to adjust energy production when needed?
Metabolic flexibility
Metabolic flexibility is the ability of cells to adjust energy output. Aging brains lose this ability, making it harder to respond to stress and maintain function. Learn more.
Cellular respiration
Oxidative stress
Energy storage
11Which type of meat is a better alternative to conventionally raised chicken?
Farmed fish like tilapia
Meat from ruminant animals like cows and sheep
Ruminant animals like cows and sheep have unique digestion that helps reduce harmful fats, making them a better meat choice compared to grain-fed chicken. Learn more.
Processed deli meats made using traditional, organic methods
Grain-fed pork products
12Which of the following is not a heavy metal?
Lead
Mercury
Aluminum
Lead, mercury, and arsenic are classified as heavy metals linked to toxicity, while aluminum is not typically grouped with them in this context. Learn more.
Arsenic
13Why are breast cancer survival rates higher in high-income regions?
Access to early detection and effective treatment differs
High-income regions detect cancer earlier and provide better care, leading to lower death rates than regions with limited access. Learn more.
Genetic risk is higher in low-income countries
Climate affects how breast cancer develops
Lifestyle choices fully explain survival differences
14What type of strength is most important for preventing falls?
Hip strength in the hip abductors
Strong hip abductors help control side-to-side balance and stability, making it easier to step, recover, and avoid falls. Learn more.
Arm strength in the shoulders
Core strength in the abdomen
Grip strength in the hands
15Which two vegetables were shown to remove most microplastics from water?
Spinach and kale
Carrots and cabbage
Broccoli and cauliflower
Okra and fenugreek
Natural okra and fenugreek removed up to 93% of microplastics from water by trapping particles and helping them clump together for easier removal. Learn more.
16Which of these foods is also a good source of choline?
Pastured eggs
Pastured eggs are rich in choline, a nutrient linked to lower anxiety and better brain function, helping support a stable mood. Learn more.
Cooked white rice
Grilled chicken breast
Unvetted olive oil
17How does cognitive shuffling help rewire your brain for better sleep?
It trains the mind to stay completely silent before sleep
It encourages focused thinking to prepare the brain for rest
It trains the brain to associate repetitive thoughts with sleep
Repeating simple, random thoughts helps the brain link this pattern with winding down. Over time, it becomes a cue that signals the body to relax and fall asleep. Learn more.
It increases mental alertness to delay the onset of fatigue
18Which of these is not a symptom of an ingrown toenail?
Redness around the nail
Swelling and tenderness
Improved nail growth
Ingrown toenails cause redness, swelling, pain, and possible infection. Improved nail growth is not a symptom. Learn more.
Pain or signs of infection
19Which cut of meat contains the least amount of collagen?
Oxtail
Beef shank
Pork knuckle
Tenderloin
Tenderloin is a lean cut with very little connective tissue, so it contains less collagen compared to tougher cuts like shank or oxtail. Learn more.
20Which of the following is not a threat to cellular energy production?
Seed oils high in linoleic acid
Exposure to plastics
Complex carbohydrates
Seed oils, plastics, and electromagnetic fields (EMFs) can damage mitochondria. Complex carbohydrates support energy production and are not a threat. Learn more.
Electromagnetic fields
21How do low vitamin K2 levels affect calcium in the body?
Calcium is fully absorbed into bones and strengthens them
Calcium builds up in arteries while bones become weaker
Without vitamin K2, calcium is not directed to bones and instead accumulates in arteries, leading to weaker bones and increased cardiovascular risk. Learn more.
Calcium is completely removed from the bloodstream
Calcium is converted into energy for the body instead of going into the bones
