Before watching the video, can you guess which conditions vitamin D has actually been proven to work for in randomized, double-blind, placebo-controlled trials?
What did a randomized, double-blind, placebo-controlled trial of hibiscus tea for weight loss find?
What is the best way to get the nutrients of concern on a plant-based diet?
I answer common questions about supplements, vitamin B12, and vitamin D. Do we need them?
A combination of low calcium intake and low vitamin D exposure may explain higher bone fracture rates in British vegans.
What are the bone fracture rates of omnivores vs. vegetarians vs. vegans?
Our body can make vitamin K2 from the K1 in green leafy vegetables.
There is little guarantee that a dietary supplement will actually contain what is advertised on the packaging and not have undeclared contaminants.
What are the pros and cons of finasteride (sold as Propecia) and minoxidil (sold as Rogaine) for hair loss?
Might biotin or zinc supplements prevent hair loss in men and women?
Cranberries and pumpkin seeds are put to the test for benign prostatic hypertrophy.
What are the risks and benefits of using vitamin C for depression and anxiety?
Foods that reduce inflammation. What does an anti-inflammatory diet look like?
Most food crops are contaminated with fungal mycotoxins, but some foods are worse than others.
What can reishi mushrooms, shiitake mushroom extracts, and whole powdered white mushrooms do for cancer patients?
Did the five randomized controlled trials of reishi mushrooms in cancer patients show benefits in terms of tumor response rate, survival time, or quality of life?
What do randomized controlled trials of high-dose daily vitamin B12 supplementation show about the effects on cancer risk, death, and longevity?
Acne can be triggered in one in ten people who get vitamin B12 injections.
For prevention and treatment of vitamin B12 deficiency, cyanocobalamin in chewable, sublingual, or liquid forms (rather than in a multivitamin) is best under most circumstances.
At age 50, everyone, regardless of diet should start supplementing with B12-fortified foods or supplements but over age 65 only high-dose daily supplements may suffice.
What are the best green-light (whole food plant-based) sources of vitamin B12?
Why the current Recommended Daily Allowance for vitamin B12 may be insufficient.
B12 deficiency is known as “The Great Masquerader.”
The diving reflex shows that it’s possible to have selective adrenal hormone effects.
Those on a healthy plant-based diet with elevated homocysteine levels despite taking sufficient vitamin B12 may want to consider taking a gram a day of contaminant-free creatine.
What are the consequences of having to make your own creatine rather than relying on dietary sources?
Many doctors mistakenly rely on serum B12 levels in the blood to test for vitamin B12 deficiency.
Not taking B12 supplements or regularly eating B12 fortified foods may explain the higher stroke risk found among vegetarians.
What to eat and what to avoid to lower the cardiovascular disease risk factor lipoprotein(a).
How do the nutrition and health effects of quinoa compare to whole grains?
Raw garlic is compared to roasted, stir-fried, simmered, and jarred garlic.
Are there any safe and effective dietary supplements for weight loss?
Only 2 out of 12 supplement companies were found to have products that were even accurately labeled.
See what a penny a day worth of garlic powder can do.
In this live presentation, Dr. Greger offers a sneak peek into his book How Not to Diet.
The reasons why fasting longer than 24 hours, and particularly three or more days, should only be done under the supervision of a health professional and preferably in a live-in clinic.
The effects of ketogenic diets on nutrient sufficiency, gut flora, and heart disease risk.
How do we explain the increased risk of prostate cancer but the decreased risk of colon cancer associated with dairy consumption?
How much does sweating via sauna or exercise get rid of lead and mercury?
What would happen if you stopped brushing your teeth but ate healthier?
