Answers to featured health and nutrition questions provided by Michael Greger M.D. FACLM and the NutritionFacts.org Volunteer Moderators. Questions are taken from the video and blog comments throughout the site. Join in the discussion to get your question featured!


What are other approaches to rectal health beyond colonoscopies?

Answered by: Thea I highly recommend taking a look at Dr. Greger's two videos on colonoscopies, What to Take Before a Colonoscopy and Should We All Get Colonoscopies Starting at Age 50? The videos are very short. The videos reference the source studies, which...

Why did the FDA remove restrictions on cholesterol?

Answered by: Thea I recommend you take a look at this article which explains how the Dietary Guidelines Committee got to their initial conclusion (which was later reversed). Very important details. As they say, the devil is in the details. And, as it...

How do I raise children and deal with the critics?

Answered by: Thea I have some resources that should help you get started on being able to bolster your case. First, note the following quote from a position paper from the ADA: "It is the position of the American Dietetic Association that...

Does eating plants give us too much pollution/chemicals?

Answered by: Dr. Michael Greger A new study calculated that if half the U.S. population ate just one more serving of conventional fruits and vegetables, 20,000 cases of cancer could be prevented. At the same time the added pesticide consumption could cause up to...

How many animal products can I eat and still be healthy?

Answered by: Dr. Michael Greger Fabulous question! There was a study involving four thousand participants that compared traditional Asian diets with and without occasional servings of meat. The researchers found that men who avoided meat altogether had only half the odds of...

How can I lose weight?

Answered by: Thea To be successful losing weight involves first learning about the importance of centering one’s diet around whole plant foods and having a sense of how to implement it. That’s half the learning curve and it sounds like you’re already...

What is a healthy way to gain weight?

Question: I am underweight and would like to gain weight in a healthy way.  Do you have any recommendations?  Answer:As explained in my video Eating More to Weigh Less, the key to healthy longterm weight loss is understanding calorie density and eating low calorie-dense...

What are some options for trainings on Lifestyle Medicine?

I am a medical student and would like to obtain more training in nutrition and lifestyle medicine. Are there any residencies for Lifestyle Medicine?  If not, what are some other training opportunities that can I pursue?  Answer:Thank you for sending in this...
Is it true that antioxidants can actually cause cancer?

Is it true that antioxidants can actually cause cancer?

Hi Dr. Greger, appreciate all your work. There's been a lot of bad news a about antioxidants recently. Should people be concerned about how much they ingest?  Ren / Originally posted in Acai to Zucchini: antioxidant food rankings Answer: Good question! There has been a buzz around...
What are the hazards of oxalates?

What are the hazards of oxalates?

CC / Originally posted in How to Prevent Kidney Stones with Diet You mention oxalates in other videos. But a vegan friend of mine has found that many of the veggies that are great sources of calcium are also high in oxalates....

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