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Michael Greger, M.D., is a physician, author, and internationally recognized professional speaker on a number of important public health issues.

Blog Entries by Michael Greger MD

Preloading with Watercress Before Exercise

Michael Greger MD | May 13, 14 at 05:00 AM | Health

Read More: aging, animal fat, animal products, animal protein, antioxidants, athletes, beef, broccoli, cheese, chicken, cholesterol, cruciferous vegetables, dairy, DNA damage, eggs, exercise, fat, fish, inflammation, lifespan, meat, medications, milk, muscle health, muscle inflammation, muscle strength, oxidative stress, plant-based diets, pork, poultry, protein, red meat, saturated fat, seafood, supplements, turkey, vegans, vegetables, vegetarians, vitamin C, watercress, yogurt

                Could exercise be creating harmful free radicals? Oxidizing glucose to produce energy for our bodies is messy, creating free radicals the way cars burning their fuel produce combustion by-products out the exhaust....

Berries to Prevent Muscle Soreness

Michael Greger MD | May 8, 14 at 05:00 AM | Health

Read More: alternative medicine, anthocyanins, athletes, berries, blueberries, C-reactive protein, cherries, citrus, complementary medicine, exercise, flavonoids, fruit, fruit juice, inflammation, juice, lactic acid, medications, muscle health, muscle inflammation, muscle soreness, muscle strength, pain, phytonutrients, side effects, sports drinks, sports medicine

                The burning sensation during strenuous exercise may be related to the build-up of lactic acid in our muscles (see Reducing Muscle Fatigue with Citrus), but that’s different than the delayed onset muscle...

Citrus to Reduce Muscle Fatigue

Michael Greger MD | May 6, 14 at 05:00 AM | Health

Read More: athletes, blood sugar, body fat, citrus, Coca-Cola, dairy, exercise, fat, fatigue, fruit, grapefruit, hesperidin, lactic acid, lemons, limes, milk, muscle health, oranges, phytonutrients, sugar, triglycerides, yogurt

                The lactic acid that makes yogurt tangy is the same lactic acid that builds up in our muscles when we exercise strenuously. Instead of bacteria fermenting the sugar in milk to make...

How Citrus Might Help Keep Your Hands Warm

Michael Greger MD | May 1, 14 at 05:00 AM | Health

Read More: cardiovascular disease, cardiovascular health, citrus, cold hands, flavonoids, fruit, fruit juice, grapefruit, heart disease, heart health, hesperidin, juice, lemons, lettuce, limes, orange juice, oranges, phytonutrients, plant-based diets, quercitin, stroke, vitamin C

                In 1936, Albert Szent-Györgyi, who won the Nobel Prize for discovering vitamin C, described a vitamin “P,” which we now know encompasses a class of thousands of phytonutrients called flavonoids. Some, like...

Toxin Contamination of Spirulina Supplements

Michael Greger MD | April 29, 14 at 05:00 AM | Health

Read More: algae, blue-green algae, cancer, infants, liver disease, liver failure, liver health, natural toxins, nerve health, pregnancy, safety limits, seizures, side effects, spirulina, supplements

                On his first day of life, an infant was hospitalized with seizures. Researchers concluded that his mother’s daily spirulina use starting in the fourth month of pregnancy was likely to blame. I’ve...

Is Noni or Mangosteen Juice Safe?

Michael Greger MD | April 24, 14 at 05:00 AM | Health

Read More: aloe vera, beverages, cardiovascular disease, cardiovascular health, children, fruit, fruit juice, heart disease, heart health, hepatotoxins, Hydroxycut, industry influence, juice, liver disease, liver failure, liver health, mangosteen, Metabolife, mortality, natural toxins, noni, safety limits, seizures, side effects, stroke, supplements

                There is now another case report of acute toxicity linked to noni juice ingestion, this time in a 14 year old. At least his liver didn’t fail completely like in two of...

Should Carrageenan Be Avoided?

Michael Greger MD | April 22, 14 at 05:00 AM | Health

Read More: acrylamide, algae, bread, carrageenan, cheese, colon health, cooking temperature, dairy, EPA, Europe, fat, FDA, food additives, french fries, grains, infant formula, infants, inflammation, inflammatory bowel disease, Ireland, leaky gut theory, McDonald's, milk, potato chips, safety limits, yogurt

                Six hundred years ago, people living along the coast of Carragheen County Ireland started using a red algae, which came to be known as Irish moss, to make a jellied dessert. This...

Treating Menstrual Pain With Diet

Michael Greger MD | April 17, 14 at 05:00 AM | Health

Read More: bloating, energy, hormones, Ibuprofen, inflammation, medications, menstruation, pain, plant-based diets, premenstrual syndrome, side effects, sleep, surgery, uterine health, vegans, vegetarians, vitamin D, weight loss, women's health

                Almost half of menstruating women experience painful,crampy periods, also known as dysmenorrhea. According to Dr. Linda French from Michigan State University College of Medicine, "despite the substantial effect on quality of life...

Cayenne for Irritable Bowel

Michael Greger MD | April 15, 14 at 05:00 AM | Health

Read More: abdominal pain, bloating, Campylobacter, capsaicin, Cayenne pepper, chronic diseases, dyspepsia, E. coli, food poisoning, foodborne illness, indigestion, inflammation, irritable bowel kiwi fruit, medications, mortality, nausea, pain, peppers, Propulcid, Salmonella, side effects, spices, spicy food, stomach health, substance P, syndrome

                Nearly 50 million Americans come down with food poisoning every year. Over a hundred thousand are hospitalized and thousands die every year just because of something they ate. If they had ordered...

Natural Treatment for Cluster Headaches

Michael Greger MD | April 10, 14 at 05:00 AM | Health

Read More: alternative medicine, chili peppers, cluster headaches, complementary medicine, headaches, pain, peppers, suicide, surgery

                In a study "Secretion, Pain and Sneezing Induced by the Application of Capsaicin to the Nasal Mucosa in Man," researchers found that if we cut a hot pepper and rub it inside...

Dr. Greger's New Nutrition DVD Now Available

Michael Greger MD | April 8, 14 at 05:00 AM | Health

Read More: DVD

The newest volume of my Latest in Clinical Nutrition DVD series is now out. Order on my website or through Amazon (all proceeds go to the 501c3 nonprofit charity that keeps NutritionFacts.org thriving). It can also be ordered as...

Foods With Natural Melatonin

Michael Greger MD | April 3, 14 at 05:00 AM | Health

Read More: aging, almonds, aspirin, bell peppers, berries, breast cancer, breast health, cancer, cherries, dried fruit, elderly, exercise, fenugreek, flax seeds, fruit, fruit juice, goji berries, hormones, Ibuprofen, inflammation, insomnia, juice, kiwi fruit, medications, Mediterranean diet, melatonin, muscle health, mustard seeds, nuts, phytonutrients, pineal gland, raspberries, seeds, serotonin, side effects, sleep, spices, sports drinks, tart cherries, tomatoes, walnuts

                We know that inadequate sleeping is associated with changes in diet—people tend to eat worse—but what about the opposite question: Can food affect sleep? In a study on kiwifruit, this seemed possible...

Two Kiwifruit an Hour Before Bedtime

Michael Greger MD | April 1, 14 at 05:00 AM | Health

Read More: aging, alternative medicine, antioxidants, cognition, complementary medicine, folate, fruit, immune function, industry influence, insomnia, kiwi fruit, lifespan, longevity, medications, memory, mortality, oxidative stress, pneumonia, serotonin, sleep, sleeping pills, tomatoes, Valium, vegetables

                The number one question in sleep research is “Why do we sleep?” followed by the question,“How much sleep do we need?” After literally hundreds of studies, we still don’t know the best...

Can We Fight the Blues With Greens?

Michael Greger MD | March 27, 14 at 05:00 AM | Health

Read More: alternative medicine, amphetamines, aneurism, animal products, apples, arachidonic acid, berries, brain disease, brain health, cheese effect, chicken, cinnamon, cloves, cocaine, complementary medicine, depression, dopamine, ecstacy, eggs, fruit, grapes, green tea, inflammation, kale, lung cancer, lung health, MAO Inhibitors, medications, mental health, mood, nutmeg, onions, oregano, phytonutrients, plant-based diets, Prozac, serotonin, side effects, smoking, spices, tobacco, vegans, vegetables, vegetarians

                Why does frequent consumption of vegetables appear to cut one’s odds of depression by more than half? And "frequent" was defined as eating vegetables not 3 or more times a day, but...

Starving Tumors of Their Blood Supply

Michael Greger MD | March 25, 14 at 05:00 AM | Health

Read More: aging, angiogenesis, antiangiogenesis, apigen, beans, berries, breast cancer, breast health, broccoli, cancer, cancer survival, celery, citrus, exercise, fisitin, flavonoids, fruit, luteolin, metastases, peppers, phytonutrients, plant-based diets, rice, spices, strawberries, tea, vegans, vegetarians, VEGF, weight loss, women's health

                About a third of common cancers may be prevented by eating a healthy, plant-based diet; being physically active; and maintaining a healthy weight. One of the ways plants may help is by...

Breast Cancer and Wine

Michael Greger MD | March 20, 14 at 05:00 AM | Health

Read More: alcohol, animal products, aromatase, breast cancer, breast cancer survival, breast feeding, breast health, cancer, colon cancer, dairy, endometrial cancer, EPIC Study, esophageal cancer, estrogen, fruit, fruit juice, grapes, Harvard Nurses' Health Study, kidney cancer, liver cancer, meat, mushrooms, oral cancer, plant-based diets, red wine, smoking, standard American diet, strawberries, United Kingdom, vegans, vegetables, vegetarians, weight loss, white wine, wine

                After diagnosis, women with breast cancer may cut their risk of dying nearly in half by just instituting simple, modest lifestyle changes—5 or more servings of fruits and veggies a day and...

When a Scraped Knee May Once Again Kill

Michael Greger MD | March 13, 14 at 05:00 AM | Health

Read More: agriculture, animal products, animal welfare, antibiotics, antimicrobial drugs, bacteria, beef, chicken, children, factory farming practices, farm animals, FDA, Food and Drug Administration, growth promoters, immune function, industry influence, meat, medications, mortality, penicillin, pork, poultry, superbugs, tetracycline, turkey, World Health Organization

                In a keynote address last year, the Director-General of the World Health Organization warned that we may be facing a future in which many of our miracle drugs no longer work. “A...

Why We Should Eat More Beans

Michael Greger MD | March 11, 14 at 05:00 AM | Health

Read More: beans, blood sugar, bread, carbohydrates, chickpeas, diabetes, fiber, garbanzo beans, gastric emptying, glycemic index, gut bacteria, gut flora, insulin, lentil effect, lentils, metabolic syndrome, pasta, peas, potatoes, pre-diabetes, propionate, rice, second meal effect, sugar

                We’ve known for decades that beans have an exceptionally low glycemic index. You give someone cooked beans, peas, or lentils and they don’t even get half the blood sugar spike that they...

Egg Industry Caught Making False Claims

Michael Greger MD | March 6, 14 at 05:00 AM | Health

Read More: American Egg Board, American Heart Association, animal products, arachidonic acid, cake, carcinogens, cardiovascular disease, cardiovascular health, cholesterol, dairy, dietary guidelines, eggs, false advertising, Federal Trade Commission, Freedom of Information Act, heart disease, heart health, industry influence, meat, milk, National Commission on Egg Nutrition, poultry, safety limits, Salmonella, smoking, steak, tobacco, turkey, USDA, vegetables

                On the basis of concerns from the American Heart Association and consumer groups, the Federal Trade Commission carried out successful legal action—upheld by the Supreme Court—to compel the egg industry to cease...