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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

Food Dyes and ADHD

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

Read More: ADHD, artificial colors, attention deficit, botulism, brain health, brain tumors, cancer, Center for Science in the Public Interest, children, Coca-Cola, cola, Europe, FDA, food additives, food dyes, heavy metals, hyperactivity, ice cream, Kraft, lead, margarine, nitrite preservatives, processed foods, processed meat, sleep, United Kingdom, USDA, vitamin B12

                There are currently thousands of additives in our food supply. Some are good—like supplementing foods with vitamin B12, for example (See Vitamin B12 Necessary for Arterial Health). Other additives involve weighing the...

Dr. Greger's New Nutrition DVD Now Available

Michael Greger MD | June 5, 14 at 05:00 AM | Health

Read More: DVD

Exciting news! I just signed a book deal with a new non-fiction division of famed science publisher Macmillan. The book is provisionally entitled How Not to Die: Simple Secrets for Longer Living. The manuscript is due by March 2015,...

How to Treat ADHD Without Drugs

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

Read More: addiction, ADHD, alternative medicine, amphetamines, attention deficit, brain health, children, complementary medicine, dopamine, exercise, hyperactivity, medications, mental health, Ritalin, side effects

                Every year in the United States, doctors write 20 million prescriptions for stimulants like Ritalin for kids with attention deficit hyperactivity disorder. Every year the number of prescriptions rises, more so than...

Avoid Butter-Flavored Microwave Popcorn

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

Read More: artificial flavors, bronchiolitis obliterans, butter, butter flavor, diacetyl, FDA, food additives, industry influence, lung disease, lung health, microwaving, mortality, Orville Redenbacher, phosgene, popcorn, popcorn lung, safety limits, smoking

                What does chemical warfare and microwave popcorn have in common? The poison gas phosgene, first used extensively as a chemical warfare agent during World War I, can cause a horrific lung disease...

Foods for a Long Life and Love Life

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

Read More: animal fat, animal products, antioxidants, beans, cake, cardiovascular disease, cardiovascular health, dairy, diabetes, erectile dysfunction, fat, fiber, fruit, grains, greens, heart disease, heart health, impotence, inflammation, meat, Mediterranean diet, men's health, mental health, nuts, penis health, plant-based diets, prediabetes, sexual dysfunction, sexual health, stroke, vegans, vegetables, vegetarians, women's health

                Motivating patients to change poor lifestyle habits can be extremely difficult. Preventing cardiovascular events such as heart attacks or strokes is a relatively distant benefit, whereas barbecued ribs, cheesecake, or sitting on...

Pills vs. Diet For Erectile Dysfunction

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

Read More: aging, angina, cardiovascular disease, cardiovascular health, cholesterol, erectile dysfunction, heart disease, heart health, impotence, inflammation, lifespan, medications, men's health, mortality, penis health, sexual dysfunction, sexual health, stress test, stroke, Viagra

                Erectile dysfunction is the recurrent or persistent inability to attain and/or maintain an erection in order for satisfactory sexual performance. It is present in up to 30 million men in the U.S....

Which Seaweed to Help Prevent Breast Cancer?

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

Read More: abdominal fat, animal fat, animal products, arsenic, Asia, beet greens, beets, blood pressure, breast cancer, breast health, California, cancer, chemotherapy, dulse, estrogen, fat, fiber, fruit, gut flora, hijiki, hormones, hypertension, iodine, Japan, kelp, low-fat diets, medications, nori, phytonutrients, salt, sea vegetables, sodium, standard American diet, thyroid disease, thyroid health, vegetables, women's health

                Sushi lovers, rejoice. Nori seaweed may favorably alter estrogen metabolism by modulating women’s gut flora, resulting in decreased breast cancer risk. As traditional East Asian diets have westernized, breast cancer rates have...

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...