For more than a century, fasting—up to 382 days without calories—has been used a weight-loss treatment.

Benefits of Fasting for Weight Loss Put to the Test

Michael Greger, M.D. FACLM, founder of NutritionFacts.org and New York Times best-selling author of How Not to Die, How Not to Diet, and the just-released How Not to Age, brings you the latest in evidence-based nutrition research, delivered in easy to understand video segments. NutritionFacts.org is a non-profit and non-commercial public health organization, and more than 2,000 videos on virtually every aspect of healthy eating are available on our website. New videos and blogs are uploaded every day–always without any sponsors, ads, brand partnerships, or paid subscriptions.

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Is heme just an innocent bystander in the link between meat intake and breast cancer, diabetes, heart disease, stroke, and high blood pressure? Let’s take a look at heme’s carcinogenic effects.

Friday Favorites: Heme Iron in Impossible Burgers and Cancer Risk

There have been more than 50 studies showing an association between higher fluoride exposure and lower IQ, but is it cause-and-effect?

Is Water Fluoridation Safe?

According to the CDC, about a third of American children now have some form of cosmetic defects in their tooth enamel due to fluoride exposure, known as dental ﬂuorosis.

Side Effects of Water Fluoridation: Dental Fluorosis

How good is the evidence that flossing is effective, and what have randomized controlled trials shown to be the optimal toothbrushing and ﬂossing sequence?

Friday Favorites: Should You Floss Before or After You Brush?

Based on nearly 100 randomized controlled trials, fluoride toothpaste reduces dental cavity rates, but what about just adding fluoride to the water supply?

Benefits of Fasting for Weight Loss Put to the Test

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