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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

Half of Doctors Give Placebos

Michael Greger MD | December 3, 13 at 05:00 AM | Health

Read More: dairy, deception, deception flow chart, doctors, false diagnosis, homeopathy, lactose, lactose intolerance, lies, lying, medicine, milk, physicians, placebos, prescription drugs

                  About half of doctors admit to intentionally deceiving patients by prescribing placebos, but might the ends justify the means? A controversial paper was published in the American Journal of Bioethics arguing...

Down But Not Out

Michael Greger MD | December 1, 13 at 05:00 AM | Health

                Nearly all of NutritionFacts.org videos are currently down. With your help, though, not only will we be back up and running again soon but stronger than ever! Yesterday, YouTube terminated our account...

Breast Cancer & Alcohol: How Much is Safe?

Michael Greger MD | November 28, 13 at 05:00 AM | Health

Read More: acetaldehyde, alcohol, alcohol metabolites, alcoholic beverages, antiseptic mouthwash, beer, breast cancer, breast disease, breast health, cancer, carcinogens, heart disease, heart disease prevention, light drinking, liquor, Listerine, mouthwash, red wine, Scope, white wine, wine, women's health, World Health Organization

                Nearly 5,000 breast cancer deaths a year may be attributable to just light drinking (up to one drink a day). The International Agency for Research on Cancer, the World Health Organization body...

Best Nutrition Bang for Your Buck

Michael Greger MD | November 26, 13 at 05:00 AM | Health

Read More: beans, beef, calorie dense, cheap, chicken, cost per calorie, cost per nutrition, cost per serving, cost per weight, dairy, empty calorie foods, fruits, grains, health food, healthy food, junk food, legumes, meat, milk, minerals, nutrient density, plant-based diet, saving money, thrifty, vegan, vegetables, vegetarian, vitamins, weight loss, weight management

When measured on a cost per serving, cost per weight, or cost per nutrition basis, fruits and vegetables beat out meat and junk food: Most Americans don't even meet the watered down Federal dietary recommendations. Some have suggested this...

Schoolchildren Should Drink More Water

Michael Greger MD | November 21, 13 at 05:00 AM | Health

Read More: amino acids, cardiovascular function, cellular dehydration, children, children's health, cognitive performance, dehydration, gastrointestinal function, hormonal function, hydration, immune function, juice, memory, mental health, milk, muscle function, neurological function, scholastic performance, skeletal function, sodium, sugar, tea, water, weight loss, weight management, youth

Most children arrive at school in a state of mild dehydration that may negatively affect scholastic performance. Preventing cellular dehydration is integral to hormonal, immune, neurological, cardiovascular, gastrointestinal, muscle and skeletal function. So researchers recently set out to determine...

Why Are Eggs Linked to Cancer Progression?

Michael Greger MD | November 19, 13 at 05:00 AM | Health

Read More: American Egg Board, beef, cancer progression, carcinogens, carnitine, chicken, choline, cooked meat, early detection, Egg Nutrition Center, eggs, heart attack, heterocyclic amines, inflammation, meat, men's health, metastases, mortality, plant-based, poultry, prostate cancer, prostate disease, prostate health, steak, stroke, TMAO, turkey, vegan, vegetarian

About two million men in the U.S. are living with prostate cancer, but that's better than dying from prostate cancer. Catch it when it's localized and our 5-year survival is practically guaranteed, but once it really starts spreading our...

Avoid Carnitine and Lethicin Supplements

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

Read More: atherosclerosis, beans, beef, carnitine, carnitine palmitoyl transferase, chicken, cholesterol, choline, dairy, death, dietary cholesterol, eggs, energy drinks, fish, foam cells, fruit, grains, gut bacteria, gut flota, heart attack, heart disease, inflammatory cells, lethicin, meat, metabolism, milk, mortality, plant-based diet, plaque, pork, poultry, red meat, saturated fat, stroke, TMAO, trimethylamine-n-oxide, vegan, vegetables, vegetarian, weight loss

A landmark study in the New England Journal of Medicine shows that choline in eggs, poultry, dairy and fish produces the same toxic TMAO as carnitine in red meat, which may help explain plant-based protection from heart disease. Earlier...

Treating Breast Pain with Flax Seeds

Michael Greger MD | November 12, 13 at 05:00 AM | Health

Read More: anovulatory cycles, breast lumpiness, breast pain, breast swelling, caffeine, cyclical mastalgia, flax seeds, ground flax, hormonal changes, hormone therapy, hormone treatment, menstruation, nutrition education, ovarian function, period, plant-based diet, premenstrual symptoms, premenstrual syndrome, vegan, vegetarian, vitamin E

A tablespoon a day of ground flax seeds appears to improve ovarian function and is considered a first-line therapy for breast pain associated with one's period (cyclical mastalgia). A study I profile in my video Flax Seeds For Breast...

Treating Breast Pain With Diet

Michael Greger MD | November 7, 13 at 05:00 AM | Health

Read More: anovulatory, Asia, Asian women, bloating, bread, breast pain, breast sensitivity, breast tenderness, butter, cramping, cyclical mastalgia, eggs, fat, hormone therapy, hormones, low-fat diet, mastectomy, meat, menstrual pain, menstrual symptoms, menstruation, milk, Nathan Pritikin, period, plant-based diet, PMS, premenstrual syndrome, prolactin, sugar, surgery, vegan, vegetarian, Western diet, women's health

As I explore in my video Plant-Based Diets For Breast Pain, eating healthy appears to offer relief from a variety of menstrual symptoms, including cramping, bloating, and breast pain. Breast pain accompanying one's period, called cyclical mastalgia, was dismissed...

Tarragon Toxicity?

Michael Greger MD | November 5, 13 at 05:00 AM | Health

Read More: alcoholic beverages, anise seed, avocado, canned fish, carcinogens, chervil, comet tail test, Consumer Protection Scientific Committee on Food, DNA damage, fats, fennel, flavoring, mutagens, oils, spices, tarragon, The European Union's Health, toxins, whole foods

Decades ago, concern was raised about some of the components of the herb tarragon. The European Union's Health & Consumer Protection Scientific Committee on Food concluded that one of the constituents may act as a carcinogen and damage DNA,...

Nutmeg Toxicity

Michael Greger MD | October 31, 13 at 05:00 AM | Health

Read More: abortifacient, amphetamine, Christmas, holidays, margin of safety, mood elevating compounds, mortality, nutmeg, nutmeg intoxication, psychopharmacological effects, psychotropic drugs, toxins

The spice nutmeg appears to have a relatively narrow margin of safety. In my research on cinnamon I ran across a peculiar paper entitled "Christmas Gingerbread and Christmas Cheer: Review of the Potential Role of Mood Elevating Amphetamine-like Compounds."...

Cinnamon for Diabetes

Michael Greger MD | October 29, 13 at 05:00 AM | Health

Read More: antioxidants, blood sugar, cassia cinnamon, Ceylon cinnamon, children's health, Chinese cinnamon, cinnamon, coumarin, diabetes, Glucophage, glucose tolerance, Indian gooseberries, liver, liver disease, liver health, metformin, nutmeg, oxalates, plant-based diet, toxins, vegan, vegetarian, youth health

The use of cinnamon to help treat diabetes remains controversial. We know that cinnamon is so good at controlling one's blood sugar that you can cheat on a diabetes test by consuming two teaspoons of cinnamon the night before...

Diet and Cellulite

Michael Greger MD | October 24, 13 at 05:00 AM | Health

Read More: abdominal fat, adiponectin, belly fat, biogenic amines, bologna, cellulite, cheese, cholesterol, colorectal polyps, fat storage, ground meat, gynoid lipodystrophy, ham, healthy weight, meat, nutrient-dense, pease, plant-based diet, polyamine, salami, spermidine, spermine, subcutaneous fat, turkey, vegan, vegetarian, waistline, weight loss, weight management

Two theories about the build-up of subcutaneous fat, involving the chemical spermine and the hormone adiponectin, suggest a plant-based diet may help with cellulite. Gynoid lipodystrophy, known colloquially as cellulite, is the orange peel-type or cottage cheese-like dimpling of...

Industry Influence on Our Dietary Guidelines

Michael Greger MD | October 22, 13 at 05:00 AM | Health

Read More: beef, cancer, cholesterol, dairy, degenerative disease, diabetes, dietary guidelines, eggs, fat, fish, George McGovern, Harvard, hypertension, International Sugar Research Foundation, ischemic heart disease, lamb, meat, milk, National Livestock and Meat Board, plant-based diet, poultry, public health, public policy, salt, Salt Institute, saturated fat, sugar, The National Dairy Council, The Senate Committee on Nutrition and Human Needs, vegan, vegetarian

The story behind the first U.S. dietary guidelines explains why, to this day, the decades of science supporting a more plant-based diet have yet to fully translate into public policy. George McGovern, who died last year at age 90,...

Flax and Breast Cancer Survival

Michael Greger MD | October 17, 13 at 05:00 AM | Health

Read More: angiogenesis inhibitors, biopsy, breast cancer, breast cancer survival, c-erbB2, cancer, cell proliferation, chemotherapy, endostatin, flaxseeds, isoflavone phytoestrogen, lignans, longevity, metastases, microdialysis, mortality, phytonutrients, post-menopause, postmenopausal, prostate cancer, tamoxifen, tumors, women's health

A randomized, double-blind, placebo-controlled clinical trial of flaxseeds in breast cancer patients found that flaxseeds appear to have the potential to reduce tumor growth in just a matter of weeks. Scientists believe this is due to a class of...

Flax and Breast Cancer Prevention

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

Read More: antibiotics, atypical hyperplasia, berries, biopsy, breast cancer, cancer, carcinoma in situ, compound X, fecal flora, fiber, flax, flaxseeds, fruits, ground flax, gut bacteria, ki-67, lignans, nuts, phytonutrients, plant-based diet, precancerous, prevention, seeds, sesame seeds, urinary tract infection, UTI, vegan, vegetables, vegetarian, whole grains, women's health

Just a teaspoon of ground flaxseeds a day may help protect against breast cancer. In 1980 a new compound was discovered in human urine. Researchers called it "compound X." Originally it was thought to be a new human hormone,...

Treating Sensitive Skin From the Inside Out

Michael Greger MD | October 10, 13 at 05:00 AM | Health

Read More: burning, chafing, flax, flax seed powder, flaxseed oil, flaxseeds, inflammation, itching, omega 3, safflower oil, sensitive skin, skin barrier, skin disease, skin health, tingling

Instead of treating sensitive skin topically, with lotions and creams, why not treat it from the inside out with diet? About half of the American population says they have sensitive skin, defined loosely as tingling, chafing, burning, itching sensations...

Flaxseeds for Diabetes

Michael Greger MD | October 8, 13 at 05:00 AM | Health

Read More: A1C, antioxidants, blood sugar, cholesterol, diabetes, fasting blood sugars, flax, flax seed powder, flaxseeds, insulin, insulin resistance, oxidant stress, plant-based diet, sexual dysfunction, supplements, triglycerides, vegan, vegetarian, weight gain, weight loss, World Health Organization

Drug companies hope to capitalize on the fact that the consumption of certain plants appears to lower the risk of diabetes by isolating these plants' active components for use and sale as pharmacological agents. Though not as profitable, why...

Flaxseeds for Prostate Cancer

Michael Greger MD | October 3, 13 at 05:00 AM | Health

Read More: African Americans, alcohol, animal fat, animal protein, biopsy, breast cancer, cancer, Chinese, cholesterol, ductal carcinoma, ethnicity, exercise, fat, fat-restricted diet, flax, flaxseeds, fruit, isoflavones, Japanese, lignans, low fat diet, phytoestrogen, PIN, plan-based diet, prostate cancer, prostate disease, prostate gland enlargement, prostate health, prostate-specific antigen, prostatic intraepithelial neoplasia, PSA, tumors, vegan, vegetables, vegetarian

Why is there such a huge disparity in prostate cancer rates around the world? The incidence of malignant prostate cancer is highest in African Americans, some 30 times greater than in Japanese men, and 120 times greater than in...

Why Is Selling Salmonella-Tainted Chicken Legal?

Michael Greger MD | October 1, 13 at 05:00 AM | Health

Read More: adulterant, adulterated, American Public Health Association, bacteria, beef, cheese, chicken, contamination, dairy, E. coli, eggs, fecal contamination, fish, food poisoning, foodborne pathogens, maggots, meat, milk, pathogens, poultry, public health, salmonella, U.S. Food and Drug Association, viruses, yogurt

When researchers last year at the Emerging Pathogens Institute ranked foodborne pathogens to figure out which was the worst, Salmonella was number one on their list. Salmonella was ranked the food poisoning bacteria with the greatest public health burden...