Dietary Diversity and Overeating
Michael Greger M.D. FACLM on 08/28/2025

Dietary Diversity and Overeating

Big Food uses our hard-wired drive for dietary diversity against us.How did we evolve to solve the daunting task of selecting a diet that supplies all the essential nutrients? Dietary diversity. By eating a variety of foods, we increase our chances of hitting all the bases. If we only ate for pleasu

M Michael Greger M.D. FACLM
Hijacking Our Appetites
Michael Greger M.D. FACLM on 08/26/2025

Hijacking Our Appetites

I debunk the myth of protein as the most satiating macronutrient.The importance of satiety is underscored by a rare genetic condition known as Prader-Willi syndrome. Children with the disorder are born with impaired signaling between their digestive system and their brain, so they don’t know when th

M Michael Greger M.D. FACLM
Lose 200 Lbs Without Feeling Hungry
Michael Greger M.D. FACLM on 08/21/2025

Lose 200 Lbs Without Feeling Hungry

I dive into one of the most fascinating series of studies I’ve ever come across.Anyone can lose weight by eating less food. Anyone can be starved thin. Starvation diets are rarely sustainable, though, since hunger pangs drive us to eat. We feel unsatisfied and unsatiated on low-calorie diets. We do

M Michael Greger M.D. FACLM
What Is “Pine Mouth Syndrome”?
Michael Greger M.D. FACLM on 08/19/2025

What Is “Pine Mouth Syndrome”?

Why do some pine nuts cause a bad taste in your mouth that can last for weeks?The reason I make pesto with walnuts instead of the more traditional pine nuts isn’t only because walnuts are probably healthier with 20 times more polyphenols, but also because of a mysterious phenomenon known as PMS. Not

M Michael Greger M.D. FACLM
Are Raw Mushrooms Safe to Eat?
Michael Greger M.D. FACLM on 08/14/2025

Are Raw Mushrooms Safe to Eat?

Microwaving is probably the most efficient way to reduce agaritine levels in fresh mushrooms.There is a toxin in plain white button mushrooms called agaritine, which may be carcinogenic. Plain white button mushrooms grow to be cremini (brown) mushrooms, and cremini mushrooms grow to be portobello mu

M Michael Greger M.D. FACLM
Why I Don’t Recommend Moringa Leaf Powder
Michael Greger M.D. FACLM on 08/12/2025

Why I Don’t Recommend Moringa Leaf Powder

“Clearly, in spite of the widely held ‘belief’ in the health benefits of M. oleifera [moringa], the interest of the international biomedical community in the medicinal potential of this plant has been rather tepid.” In fact, it has been “spectacularly hesitant in exploring its nutritional and medicin

M Michael Greger M.D. FACLM
Is Moringa the Most Nutritious Food?
Michael Greger M.D. FACLM on 08/07/2025

Is Moringa the Most Nutritious Food?

Does the so-called miracle tree live up to the hype?Moringa (Moringa oleifera) is a plant commonly known as the “miracle” tree due to its purported healing powers across a spectrum of diseases. If “miracle” isn’t hyperbolic enough for you, “on the Internet,” it’s also known as “God’s Gift to Man.” I

M Michael Greger M.D. FACLM
Are Carboxymethylcellulose, Polysorbate 80, and Other Emulsifiers Safe?
Michael Greger M.D. FACLM on 08/05/2025

Are Carboxymethylcellulose, Polysorbate 80, and Other Emulsifiers Safe?

Emulsifiers are the most widely used food additives. What are they doing to our gut microbiome?When grocery shopping these days, unless you’re sticking to the produce aisle, “it is nearly impossible to avoid processed foods, particularly in the consumption of a typical Western diet,” which is charac

M Michael Greger M.D. FACLM
True Health Intiative: Scientific Consensus on a Healthy Diet
Michael Greger M.D. FACLM on 07/31/2025

True Health Intiative: Scientific Consensus on a Healthy Diet

The leading risk factor for death in the United States is the American diet.About a decade ago, the American Heart Association (AHA) expressed concern that its “2020 target of improving cardiovascular health by 20% by 2020 will not be reached if current trends continue.” By 2006, most people were al

M Michael Greger M.D. FACLM
Michael Greger M.D. FACLM on 07/29/2025

Cleaning Products, Air Fresheners, and Lung Function

There is a reason the U.S. Centers for Disease Control and Prevention prohibits not only smoking but also scented or fragranced products in its buildings.In a recent review entitled “Damaging Effects of Household Cleaning Products on the Lungs,” researchers noted: “Adverse respiratory effects of cle

M Michael Greger M.D. FACLM
Boosting BDNF Levels in Our Brain to Treat Depression
Michael Greger M.D. FACLM on 07/24/2025

Boosting BDNF Levels in Our Brain to Treat Depression

We can raise BDNF levels in our brain by fasting and exercising, as well as by eating and avoiding certain foods.There is accumulating evidence that brain-derived neurotrophic factor (BDNF) may be playing a role in human depression. BDNF controls the growth of new nerve cells. “So, low levels of thi

M Michael Greger M.D. FACLM
Does Fasting Help Treat Depression?
Michael Greger M.D. FACLM on 07/22/2025

Does Fasting Help Treat Depression?

Caloric restriction can boost levels of brain-derived neurotrophic factor (BDNF), which is considered to play a critical role in mood disorders.For more than a century, fasting has been espoused as a treatment of supposed “great utility in the preservation of health,” especially rejuvenating the bod

M Michael Greger M.D. FACLM
IBD and Cannabis
Michael Greger M.D. FACLM on 07/17/2025

IBD and Cannabis

Smoking cannabis may help with symptoms of inflammatory bowel disease (IBD) in the short term, but it may make the long-term prognosis worse.As this study asks, “Medical Marijuana: A Panacea or Scourge?” For 5,000 years, cannabis “has been used throughout the world medically, recreationally, and spi

M Michael Greger M.D. FACLM
Eating to Downregulate a Gene for Metastatic Cancer
Michael Greger M.D. FACLM on 07/15/2025

Eating to Downregulate a Gene for Metastatic Cancer

Women with breast cancer should include the “liberal culinary use of cruciferous vegetables.”Both the Women’s Intervention Nutrition Study and the Women’s Health Initiative study showed that women randomized to a lower-fat diet enjoyed improved breast cancer survival. However, in the Women’s Healthy

M Michael Greger M.D. FACLM
Eating to Help Control Cancer Metastasis
Michael Greger M.D. FACLM on 07/10/2025

Eating to Help Control Cancer Metastasis

Randomized controlled trials show that lowering saturated fat intake can lead to improved breast cancer survival.The leading cause of cancer-related death is metastasis. Cancer kills because cancer spreads. The five-year survival rate for women with localized breast cancer is nearly 99 percent, for

M Michael Greger M.D. FACLM
Dietary Components That May Cause Cancer to Metastasize
Michael Greger M.D. FACLM on 07/08/2025

Dietary Components That May Cause Cancer to Metastasize

Palmitic acid, a saturated fat concentrated in meat and dairy, can boost the metastatic potential of cancer cells through the fat receptor CD36.The leading cause of death in cancer patients is metastasis formation. That’s how most people die of cancer—not from the primary tumor, but the cancer sprea

M Michael Greger M.D. FACLM
Does Black Cumin Seed (Nigella Sativa) Help with Weight Loss?
Michael Greger M.D. FACLM on 07/03/2025

Does Black Cumin Seed (Nigella Sativa) Help with Weight Loss?

For three cents a day, black cumin may improve our cholesterol and triglyceride levels, blood pressure, and blood sugar control, as well as accelerate the loss of body fat.Black cumin, also known as Nigella sativa or simply “black seed,” is not related to cumin; it’s a member of the buttercup family

M Michael Greger M.D. FACLM
Should We Drink Kombucha
Michael Greger M.D. FACLM on 07/01/2025

Should We Drink Kombucha

What are the risks versus benefits of drinking kombucha?Is Kombucha Tea Good for You? is one of my first videos. It was featured in a blog entry entitled “NutritionFacts.org: the first month,” where I marveled the video had reached nearly 100,000 people. You can see it below and at 0:20 in my video

M Michael Greger M.D. FACLM
Treating Hashimoto’s Disease (Hypothyroidism) Naturally with Diet
Michael Greger M.D. FACLM on 06/26/2025

Treating Hashimoto’s Disease (Hypothyroidism) Naturally with Diet

What were the results of a randomized, double-blind, placebo-controlled trial of a daily half teaspoon of powdered black cumin in Hashimoto’s patients?“Autoimmune thyroiditis, also known as Hashimoto’s thyroiditis, is an organ-specific autoimmune disorder,” where our body attacks our own thyroid glan

M Michael Greger M.D. FACLM
Michael Greger M.D. FACLM on 06/24/2025

Eating with Hypothyroidism and Hyperthyroidism

Is the apparent protection of plant-based diets for thyroid health due to the exclusion of animal foods, the benefits of plant foods, or both?Several autoimmune diseases affect the thyroid gland, and Graves’ disease and Hashimoto’s thyroiditis are the most common. Graves’ disease results in hyperthy

M Michael Greger M.D. FACLM
A Healthy, Natural Source of Iodine?
Michael Greger M.D. FACLM on 06/19/2025

A Healthy, Natural Source of Iodine?

How much nori, dulse, or arame approximates the recommended daily allowance for iodine?Dairy milk supplies between a quarter and a half of the daily iodine requirement in the United States, though milk itself has “little native iodine.” The iodine content in cow’s milk is mainly determined by factor

M Michael Greger M.D. FACLM
Vegans and Iodine Deficiency Risk
Michael Greger M.D. FACLM on 06/17/2025

Vegans and Iodine Deficiency Risk

Most plant-based milks are not fortified with iodine.“Adequate dietary iodine is required for normal thyroid function.” In fact, the two thyroid hormones are named after how many iodine atoms they contain: T3 and T4. “Given that iodine is extensively stored in the thyroid gland itself, it can safely

M Michael Greger M.D. FACLM
What About Elderberry, Echinacea, and Cranberries for Colds and the Flu?
Michael Greger M.D. FACLM on 06/12/2025

What About Elderberry, Echinacea, and Cranberries for Colds and the Flu?

How effective are flu shots, elderberries, echinacea, and cranberries?The U.S. Centers for Disease Control and Prevention (CDC) recommends that everyone over the age of six months get a routine flu shot every year, unless you have some sort of contraindication, such as an allergy to any of the vacci

M Michael Greger M.D. FACLM
Skip the Salt and Shake on Potassium Chloride?
Michael Greger M.D. FACLM on 06/10/2025

Skip the Salt and Shake on Potassium Chloride?

Worldwide, physical inactivity accounts for more than 10 million years of healthy life lost, but what we eat accounts for nearly 20 times that. As I discuss in my video Fewer Than 1 in 5,000 Meet Sodium and Potassium Recommended Intakes, unhealthy diets shave hundreds of millions of disability-free

M Michael Greger M.D. FACLM