All Videos for Supplements

Caffeine Shampoo and Rosemary Oil for Hair Growth

I cover natural topical treatments for hair growth, including pumpkin seed oil, caffeine, green tea, pyrithione zinc, ginger, Chinese knotweed, and rosemary.



Are There Any Side Effects to Taking Creatine?

A misinterpretation of lab tests may explain concerns over kidney safety with creatine supplementation.



What Is Creatine? Can It Treat Sarcopenia (Muscle Loss with Age)?

When accompanied by a progressive strength-training regimen, 3 grams of creatine a day may improve muscle performance in older adults.



Book Trailer for How Not to Age

Learn about my newest book, How Not to Age, a New York Times Best Seller.



Are Beer, Bananas, and B Vitamins Mosquito Repellents?

What happens when mosquitos put on beer goggles?



Vitamin D Supplements Tested for COPD, Heart Disease, Depression, Obesity, and Cancer Survival

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?



Fat-Blocking Benefits of Hibiscus Tea

What did a randomized, double-blind, placebo-controlled trial of hibiscus tea for weight loss find?



Potential Vitamin and Mineral Deficiency Risks on a Vegan Diet

What is the best way to get the nutrients of concern on a plant-based diet?



Are Supplements and Vitamins B12 and D Really Necessary on a Plant-Based Diet?

I answer common questions about supplements, vitamin B12, and vitamin D. Do we need them?



Vitamin D May Explain Higher Bone Fracture Risk in Vegans

A combination of low calcium intake and low vitamin D exposure may explain higher bone fracture rates in British vegans.



Do Vegans Have Lower Bone Density and More Fractures?

What are the bone fracture rates of omnivores vs. vegetarians vs. vegans?



The Purported Benefits of Vitamin K2: Should You Take Supplements?

Our body can make vitamin K2 from the K1 in green leafy vegetables.



Supplement Regulation and Side Effects: Efforts to Suppress the Truth

There is little guarantee that a dietary supplement will actually contain what is advertised on the packaging and not have undeclared contaminants.



Pills for Hair Growth

What are the pros and cons of finasteride (sold as Propecia) and minoxidil (sold as Rogaine) for hair loss?



Supplements for Hair Growth

Might biotin or zinc supplements prevent hair loss in men and women?



Natural Dietary Treatments for Enlarged Prostate BPH

Cranberries and pumpkin seeds are put to the test for benign prostatic hypertrophy.



Do Vitamin C Supplements Help with Anxiety?

What are the risks and benefits of using vitamin C for depression and anxiety?



Which Foods Are Anti-Inflammatory?

Foods that reduce inflammation. What does an anti-inflammatory diet look like?



Ochratoxin in Certain Herbs, Spices, and Wine

Most food crops are contaminated with fungal mycotoxins, but some foods are worse than others.



White Button Mushrooms for Prostate Cancer

What can reishi mushrooms, shiitake mushroom extracts, and whole powdered white mushrooms do for cancer patients?



Medicinal Mushrooms for Cancer Survival

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?



Do Vitamin B12 Supplements Cause Bone Fractures and Lung Cancer?

What do randomized controlled trials of high-dose daily vitamin B12 supplementation show about the effects on cancer risk, death, and longevity?



Do Vitamin B12 Supplements Cause Acne?

Acne can be triggered in one in ten people who get vitamin B12 injections.



The Best Type of Vitamin B12: Cyanocobalamin or Methylcobalamin?

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.



The Optimal Vitamin B12 Dosage for Kids, Pregnancy, and Seniors

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.



The Healthiest Food Sources of Vitamin B12

What are the best green-light (whole food plant-based) sources of vitamin B12?



The Optimal Vitamin B12 Dosage for Adults

Why the current Recommended Daily Allowance for vitamin B12 may be insufficient.



The Symptoms of Vitamin B12 Deficiency

B12 deficiency is known as “The Great Masquerader.”



How to Get the Weight Loss Benefits of Ephedra Without the Risks

The diving reflex shows that it’s possible to have selective adrenal hormone effects.



The Efficacy and Safety of Creatine for High Homocysteine

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.



Should Vegetarians Take Creatine to Normalize Homocysteine?

What are the consequences of having to make your own creatine rather than relying on dietary sources?



How to Test for Functional Vitamin B12 Deficiency

Many doctors mistakenly rely on serum B12 levels in the blood to test for vitamin B12 deficiency.



Vegetarians and Stroke Risk Factors—Vitamin B12 and Homocysteine?

Not taking B12 supplements or regularly eating B12 fortified foods may explain the higher stroke risk found among vegetarians.



How to Lower Lp(a) with Diet

What to eat and what to avoid to lower the cardiovascular disease risk factor lipoprotein(a).



Benefits of Quinoa for Lowering Triglycerides

How do the nutrition and health effects of quinoa compare to whole grains?



Benefits of Garlic for Fighting Cancer and the Common Cold

Raw garlic is compared to roasted, stir-fried, simmered, and jarred garlic.



Are Weight-Loss Supplements Effective?

Are there any safe and effective dietary supplements for weight loss?



Are Weight-Loss Supplements Safe?

Only 2 out of 12 supplement companies were found to have products that were even accurately labeled.



Benefits of Garlic Powder for Heart Disease

See what a penny a day worth of garlic powder can do.



Evidence-Based Weight Loss – Live Presentation

In this live presentation, Dr. Greger offers a sneak peek into his book How Not to Diet.