All Videos for Hormones

Why Do Vegan Women Have 5x Fewer Twins?

The hormones naturally found in foods of animal origin may help explain why women who eat conventional diets are five times more likely to give birth to twins than those eating plant-based diets.



Estrogen in Meat, Dairy, and Eggs

The sex steroids found naturally in animal products likely exceed the hormonal impacts of endocrine-disrupting chemical pollutants.



Is the Pesticide Glyphosate in Monsanto’s Roundup Safe?

Higher levels of pesticides on GMO soy is a concern since Monsanto’s Roundup has been shown to have adverse effects on human placental tissue.



Dairy Estrogen and Male Fertility

Sex steroid hormones in meat, eggs, and dairy may help explain the link between saturated fat intake and declining sperm counts.



Illegal Drugs in Chicken Feathers

By testing chicken feathers for chemical residues, researchers aim to find out what the poultry industry is feeding their birds. The presence of banned drugs and a broad range of pharmaceuticals raises concern, recalling the time in which DES was fed to chickens for years after it was shown to cause human vagina cancer.



Saving Lives by Treating Acne with Diet

Over-activated TOR signaling may help explain the link between acne and subsequent risk for prostate and breast cancer.



Prevent Cancer from Going on TOR

Suppressing the engine-of-aging enzyme TOR (Target of Rapamycin) by reducing intake of leucine–rich animal products, such as milk, may reduce cancer risk.



Appropriating Plant Defenses

Plants and animals share similar biochemical pathways and signaling systems, which may explain why so many phytonutrients are beneficial to our physiology.



Alpha-Gal and the Lone Star Tick

Our immune response against a foreign molecule present in animal products may play a role in some allergic, autoimmune, and inflammatory disorders. This reaction is thought to underlie tick bite-triggered meat allergies.



Dietary Sources of Alkylphenol Endocrine Disruptors

Foods of animal origin (especially fish) appear to be the most important source of human exposure to industrial pollutants such as alkylphenol xenoestrogens.



Prostate Cancer and Organic Milk vs. Almond Milk

Does the hormonal stimulation of human prostate cancer cells by cow milk in a petri dish translate out clinically in studies of human populations?



Phosphate Additives in Meat Purge and Cola

The consumption of phosphorus preservatives in junk food, and injected into meat, may damage blood vessels, accelerate the aging process, and contribute to osteoporosis.



Which Seaweed Is Most Protective Against Breast Cancer?

Nori seaweed snacks may favorably alter estrogen metabolism by modulating women’s gut flora, resulting in decreased breast cancer risk.



Dietary Treatment for Painful Menstrual Periods

Women suffering with dysmenorrhea who switch to a plant-based diet experience significant relief in menstrual pain intensity and duration.



Tart Cherries for Insomnia

The melatonin content in certain plant foods such as almonds, raspberries, and goji berries may explain the improvement in sleep quality associated with tart cherry consumption.



Lavender for Generalized Anxiety Disorder

In a double-blind study, lavender oil worked as well as the valium-like drug lorazepam (Ativan) for relief of persistent anxiety, though there are concerns about estrogenic effects.



Does a Drink of Water Make Children Smarter?

Most children don’t drink water from when they wake up to when they go off to school. Interventional trials show this mild state of dehydration may negatively affect scholastic performance.



Flaxseeds for Breast Pain

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).



Plant-Based Diets for Breast Pain

Plant-based diets appear to offer relief from a variety of menstrual symptoms, including cramping, bloating, and breast pain (cyclical mastalgia).



Can Cellulite Be Treated with Diet?

Two theories about the buildup of subcutaneous fat, involving the chemical spermine and the hormone adiponectin, suggest a plant-based diet may help with cellulite.



Herbal Tea Update: Rooibos & Nettle

Rooibos (red) tea may reduce stress levels by suppressing adrenal gland function. Nettle tea is mineral-rich, but may have estrogenic side effects.



Protein, Puberty, and Pollutants

The early onset of puberty in girls associated with animal protein consumption may be due to endocrine-disrupting chemical pollutants in the meat supply.



PhIP: The Three-Strikes Breast Carcinogen

The cooked meat carcinogen PhIP—found in fried bacon, fish, and chicken—may not only trigger cancer and promote tumor growth, but also increase its metastatic potential, by increasing its invasiveness.



Estrogenic Cooked-Meat Carcinogens

DNA-damaging chemicals, formed when meat is cooked, stimulate breast cancer cells almost as much as pure estrogen, and can infiltrate the ducts where most breast cancers arise.



Preventing Breast Cancer by Any Greens Necessary

Which was associated with lowest breast cancer risk in African-American women? Apples, bananas, broccoli, cabbage, cantaloupe, carrots, collard greens, grapefruit, oranges, spinach, tomatoes, or sweet potatoes?



Breast Cancer vs. Mushrooms

Researchers pit plain white mushrooms against breast cancer cells in vitro to measure aromatase activity, and estimate how many mushrooms women may want to strive to include in their daily diet.



Gerson Therapy for Cancer

Gerson Therapy is a largely diet-based alternative treatment for cancer. What have 65 years of medical research concluded about its efficacy and safety?



Plant-Based Bioidentical Hormones

Do compounded bioidentical hormones for menopause carry the same risks as conventional hormone replacement drugs, such as Premarin?



The Best Baby Formula

Exclusive breastfeeding for a full six months may, ironically, improve our children’s taste for vegetables—whereas children fed formula grow up with increased rates of inflammatory diseases such as asthma, cancer, and diabetes.



President’s Cancer Panel Report on Environmental Risk

The official National Cancer Institute report on the “unacceptable” burden of cancer stemming from industrial chemical pollutants is strongly worded, but lacks sufficient dietary guidance.



Plant-Based Bodybuilding

Lower levels of the cancer-promoting growth hormone IGF-1 in those eating vegan is not expected to affect their accumulation of muscle mass.



IGF-1 as One-Stop Cancer Shop

Insulin-like growth factor (IGF-1) is a natural human growth hormone instrumental in normal growth during childhood, but in adulthood can promote abnormal growth—the proliferation, spread (metastasis), and invasion of cancer.



Uprooting the Leading Causes of Death

Death in America is largely a foodborne illness. Focusing on studies published just over the last year in peer-reviewed scientific medical journals, Dr. Greger offers practical advice on how best to feed ourselves and our families to prevent, treat, and even reverse many of the top 15 killers in the United States.



New Mineral Absorption Enhancers Found

The whole grain phytonutrient phytic acid (phytate) partially inhibits mineral absorption, but has a wide range of health-promoting properties, such as anticancer activity. By concurrently eating mineral absorption enhancers, such as garlic and onions, one can get the best of both worlds by improving the bioavailability of iron and zinc in plant foods.



The Benefits of Caloric Restriction Without the Actual Restricting

One mechanism by which caloric restriction may extend one’s lifespan is by upregulating dehydroepiandrosterone (DHEA), the most abundant steroid hormone in the human body. DHEA supplements are discouraged, but there may be a natural way to conserve levels as we age.



A Fine Kettle of Fluoxetine

Excreted pharmaceutical drugs, such as Prozac, can end up polluting our waterways, and may bioaccumulate in fish flesh.



The Acne-Promoting Effects of Milk

Dairy is considered a major cause of the acne epidemic, and other more serious chronic diseases in the Western world, due to the “abuse” of the mammalian postnatal signaling system by widespread cow milk consumption.



Skim Milk and Acne

Three Harvard studies linking acne with dairy consumption in adolescent girls and boys blamed the sex steroid hormone content naturally found in cow’s milk (even without added hormones)—particularly skim.



National Dairy Council on Acne and Milk

The Harvard Nurses’ Study found an association between high school dairy intake and severe physician-diagnosed acne.



Safest Source of B12

Since foods are effectively a package deal, what’s the best way to get vitamin B12 (cobalamin)?