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Michael Greger MD

Michael Greger MD

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A founding member and Fellow of the American College of Lifestyle Medicine, Michael Greger, MD, is a physician, author, and internationally recognized speaker on nutrition, food safety, and public health issues. He has lectured at the Conference on World Affairs, testified before Congress, and was invited as an expert witness in the defense of Oprah Winfrey in the infamous "meat defamation" trial. He is a graduate of Cornell University School of Agriculture and Tufts University School of Medicine. Currently Dr. Greger serves as the Director of Public Health and Animal Agriculture at The Humane Society of the United States. His latest book is How Not to Die. More than a thousand of his nutrition videos are freely available at NutritionFacts.org, with new videos and articles uploaded every day.

Blog Entries by Michael Greger MD

How to Reduce Your Dietary Cadmium Absorption

Michael Greger MD | October 20, 15 at 05:00 AM | Health

Read More: air pollution, animal products, antioxidants, beans, breast cancer, cadmium, cancer, cardiovascular disease, cardiovascular health, chicken, cognition, diabetes, eggs, fiber, grains, heart disease, heart health, heavy metals, junk food, lead, meat, mercury, nuts, omnivores, organ meats, oxidative stress, phytates, plant-based diets, poultry, seafood, Slovakia, smoking, supplements, Sweden, turkey, vegans, vegetables, vegetarians, zinc

Cadmium is known as a highly toxic metal that represents a major hazard to human health. It sticks around in our body for decades because our body has no efficient way to get rid of it and may contribute...

Reduce Workout Soreness With Watermelon

Michael Greger MD | October 15, 15 at 05:00 AM | Health

Read More: alternative medicine, cherries, complementary medicine, fruit, ibuprofen, inflammation, internal bleeding, muscle soreness, naproxen, phytonutrients, side effects, Spain, stomach health, stomach inflammation, stomach ulcers, vegetables, watermelon

Long-distance runners and cross-fit athletes alike know it well: Delayed-onset muscle soreness is the discomfort that starts the day after a particularly grueling workout, caused by micro-tears in the muscle that lead to inflammation. The leading pharmaceutical interventions are...

How to Treat Gout With Diet

Michael Greger MD | October 8, 15 at 05:00 AM | Health

Read More: alcohol, allopurinol, animal products, animal studies, antioxidants, arthritis, asparagus, cherries, chronic diseases, colon health, fish, fruit, gout, grapes, inflammation, joint disease, joint health, kiwi fruit, meat, mushrooms, organ meats, oxidative stress, pain, protein, purines, sardines, seafood, side effects, skin health, strawberries, tart cherries, uric acid

The Washington State Fruit Commission, our largest cherry producer, can fund reviews that cherry-pick studies on the anti-inflammatory effects of cherries in a petri dish and animal models. But what we've needed are human studies. For example, if we...

Which are More Anti-Inflammatory: Sweet Cherries or Tart Cherries?

Michael Greger MD | October 6, 15 at 05:00 AM | Health

Read More: abdominal pain, alternative medicine, anthocyanins, cardiovascular disease, cardiovascular health, cherries, complementary medicine, enzymes, frozen fruit, heart disease, heart health, ibuprofen, inflammation, insomnia, internal bleeding, meat, mortality, muscle health, muscle soreness, oatmeal, organ meats, pain, phytonutrients, side effects, stomach health, stomach inflammation, stomach ulcers, tart cherries, Vioxx

Haggis, the national dish of Scotland, is a savory pudding of heart, liver, lungs, and oatmeal traditionally stuffed inside of a stomach. When that stomach goes into our own stomach, our digestive enzymes and stomach acid have no problem...

Where Do You Get Your Fiber?

Michael Greger MD | September 28, 15 at 05:00 AM | Health

Read More: animal fat, animal protein, beans, blood pressure, calories, cancer, cardiovascular disease, cardiovascular health, cholesterol, dairy, diabetes, dietary guidelines, eggs, fat, fiber, fish, flexitarians, folate, foodborne illness, fruit, grains, heart disease, heart health, junk food, meat, metabolic syndrome, obesity, omnivores, phytonutrients, plant protein, plant-based diets, prediabetes, protein, saturated fat, standard American diet, steak, vegans, vegetables, vegetarians, vitamin C

Vegetarians and vegans are all too familiar with the question: Where do you get your protein? Well, we can finally put to rest the question of whether vegetarians get enough protein thanks to a large study that compared the...

Exercise as Medicine

Michael Greger MD | September 24, 15 at 05:00 AM | Health

Read More: aging, alcohol, alternative medicine, broccoli, calories, cancer, cardiovascular disease, cardiovascular heath, chronic diseases, complementary medicine, depression, diabetes, exercise, greens, Harvard, heart disease, heart health, hypertension, kale, Lifestyle medicine, mortality, obesity, osteoporosis, prediabetes, smoking, stroke, vegetables

Physical inactivity has been called the biggest public health problem of the 21st century. Of course just because someone calls it that doesn't mean it's true, in fact physical inactivity ranks down at #5 in terms of risk factors...

My New Book HOW NOT TO DIE is Now Available for Pre-Order!

Michael Greger MD | September 22, 15 at 05:00 AM | Health

Read More: book, How Not to Die

It's hard to express how excited I am that How Not to Die is going to be out soon! Pre-order it now at http://www.NutritionFacts.org/book (all my proceeds go to keep this site running). When I started writing this book,...

Eliminate Most of Your Chronic Disease Risk in Four Steps

Michael Greger MD | September 17, 15 at 05:00 AM | Health

Read More: aging, alternative medicine, American College of Lifestyle Medicine, cancer, cardiovascular disease, cardiovascular health, chronic diseases, colon cancer, complementary medicine, diabetes, dietary guidelines, exercise, fruit, grains, heart disease, heart health, lifespan, Lifestyle medicine, meat, mortality, obesity, plant-based diets, prediabetes, smoking, stroke, vegetables, vitamin C

In 1903, Thomas Edison predicted that the doctor of the future will give no medicine, but instead "instruct his patient in the care of the human frame in diet and in the cause and prevention of disease." A hundred...

How Much Longer Do Fruit and Vegetable Eaters Live?

Michael Greger MD | September 15, 15 at 05:00 AM | Health

Read More: cost savings, fruit, lifespan, longevity, mortality, phytonutrients, side effects, Taiwan, vegetables

Probably the least controversial advice in all of nutrition is to eat more fruits and vegetables, which is to say to eat more plants since the term vegetable basically means all parts of the plant that aren't fruit. We've...

How Plants Can be Both Safer and More Effective

Michael Greger MD | September 10, 15 at 05:00 AM | Health

Read More: alternative medicine, aspirin, asthma, beans, calcium, cancer, chronic diseases, complementary medicine, cost savings, curcumin, FDA, fruit, genital health, genital warts, grains, green tea, hypertension, industry influence, inflammation, inflammatory bowel disease, medications, pain, spices, turmeric, vegetables

During the last decade, the drug industry has followed an assumption that a single drug hitting a single target was the "rational" way to design drugs. We're learning that Mother Nature may be a bit too complicated for that....

Plants as Intellectual Property: Patently Wrong?

Michael Greger MD | September 8, 15 at 05:00 AM | Health

Read More: alternative medicine, broccoli, complementary medicine, cost savings, curcumin, India, industry influence, marketing, medications, patent, phytonutrients, spices, supplements, turmeric, wound healing

Since ancient times, Mother Nature has been a fertile source for drugs used to treat human diseases. One such remedy is the spice turmeric, specifically known for its naturally-yellow compound, curcumin, which has been used for at least 2,500...

Dr. Greger Takes on Calcium Supplements in New DVD

Michael Greger MD | September 3, 15 at 05:00 AM | Health

Read More: DVD

The optimal daily calcium intake is one of the most controversial areas in nutrition. Unlike most other nutrients, there exists no international consensus. For example in the UK, the recommendation for adults is 700 mg a day, but in...

Why Certain Plant Compounds May Mimic Dietary Restriction

Michael Greger MD | September 3, 15 at 05:00 AM | Health

Read More: antioxidants, caloric restriction, chronic diseases, curcumin, evolution, exercise, fruit, grapes, green tea, hormesis, inflammation, lifespan, liquid smoke, longevity, medications, oxidative stress, pain, phytonutrients, resveratrol, spices, stress, turmeric, vegetables, xenohormesis

A new concept, called xenohormesis, has arisen to explain the mystery of why so many plant molecules interact with and modulate key regulators of our physiology in ways that are beneficial to our health (explained further in my video,...

How Humans Benefit From Stressed Plants

Michael Greger MD | September 1, 15 at 05:00 AM | Health

Read More: alternative medicine, antioxidants, aspirin, complementary medicine, DNA damage, evolution, fruit, grapes, hormones, lettuce, medications, nitric oxide, oxidative stress, penicillin, phytonutrients, protein, strawberries, stress, sunlight, vegetables, water, wound healing

Plants live the ultimate sedentary lifestyle--most of us usually think of plants more as objects than as organisms. Because plants can't move, they've had to evolve a whole other way to escape threats to their well-being. Plants can "sense...

Hives from Tick Bite-Induced Meat Allergies

Michael Greger MD | August 27, 15 at 05:00 AM | Health

Read More: allergies, alpha-gal, anchovies, anisakis, autoimmune diseases, bacon, cats, chicken, children, fat, fish, hives, insects, leaky gut theory, meat, medications, parasites, pork, pork rinds, poultry, red meat, seafood, skin health, sushi, tick bites, turkey, urticaria

In a previous video Alpha Gal and the Lone Star Tick, I started talking about a tick bite-induced meat allergy, called Alpha-Gal, that is unlike any other food allergy we know. The most interesting feature of the reactions may...

How a Tick Bite Can Lead to Food Allergies

Michael Greger MD | August 25, 15 at 05:00 AM | Health

Read More: allergies, alpha-gal, animal products, animal protein, arthritis, autoimmune diseases, brain disease, breast cancer, breast disease, breast health, cancer, Crohn's disease, evolution, farm animals, hormones, IGF-1, immune function, inflammation, insects, kidney disease, kidney health, kingdom, liver disease, liver health, lyme disease, meat, mushrooms, Neu5Gc, parasites, plant protein, pork, protein, saliva, STARI, thyroid disease, thyroid health, tick bites

In the beginning, Aristotle defined two forms of life on planet Earth: plants and animals. Two thousand years later, the light microscope was invented and we discovered tiny, single-celled organisms like amoebas. Then, the electron microscope was invented and...

What Do Eggs Do To Our Arteries?

Michael Greger MD | August 20, 15 at 05:00 AM | Health

Read More: American Egg Board, breakfast, cardiovascular disease, cardiovascular health, cheese, cholesterol, eggs, fast food, fat, heart disease, heart health, industry influence, LDL cholesterol, McDonald's, oatmeal, obesity, sausage, smoking, standard American diet

In reaction to the study that found a similar exponential increase in artery clogging plaque in both smokers and egg eaters, one critic countered that eggs have beneficial effects on vascular endothelium, the inner lining of our arteries, citing...

Dietary Cholesterol Affects Blood Cholesterol Levels

Michael Greger MD | August 18, 15 at 05:00 AM | Health

Read More: American Heart Association, animal products, cardiovascular disease, cardiovascular health, cholesterol, diabetes, eggs, heart disease, heart health, industry influence, LDL cholesterol, lifespan, longevity, metabolic syndrome, mortality, nutrition myths, prediabetes, smoking, standard American diet

In my video, Eggs vs. Cigarettes in Atherosclerosis, I profiled a study showing that both smoking and eating eggs can harm our arteries. But even egg yolks alone were associated with artery-clogging plaque buildup nearly two thirds as bad...

Do Walnuts Really Improve Artery Function?

Michael Greger MD | August 13, 15 at 05:00 AM | Health

Read More: allergies, animal products, cardiovascular disease, cardiovascular health, cholesterol, dairy, hazelnuts, heart disease, heart health, LDL cholesterol, lifespan, longevity, meat, mortality, nuts, olive oil, walnuts

Good news for nut lovers: Eating at least one serving of walnuts per week may drop our chances of a cardiovascular-related death by 50%. However, walnut consumption may only drop our cholesterol levels about 5%. How could we get...

Salmon May Be the Greatest Source of Dietary Pollutants

Michael Greger MD | August 11, 15 at 05:00 AM | Health

Read More: animal fat, biomagnification, diabetes, dioxins, fat, Harvard Nurses' Health Study, hexachlorobenzene, hypertension, industrial toxins, mercury, obesity, PCBs, persistent organic pollutants, prediabetes, pregnancy, restaurants, salmon, supermarkets

In my video Diabetes and Dioxins, I explored a nationwide study that found a strong dose-response relationship between industrial toxins and diabetes. Since then, Harvard researchers have reported a link between persistent pollutants like hexachlorobenzene and diabetes in their...