Todos los videos de: Estrés Oxidativo

Cancer, Interrupted: Green Tea

Using the cooked meat carcinogen PhIP to turn normal breast cells cancerous, researchers explore the use of green tea to interrupt this malignant transformation.



Heterocyclic Amines in Eggs, Cheese, & Creatine?

Even vegetarians could potentially be exposed to the carcinogens typically formed by cooking meat through eggs, cheese, creatine sports supplements, and cigarette smoke.



Reducing Cancer Risk in Meat-Eaters

Those who eat meat risk food poisoning from undercooked meat, but also exposure to cooked meat carcinogens in well-cooked meat. By boiling meat, non-vegetarians can mediate their risk of both.



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.



Fibromyalgia vs. Vegetarian and Raw Vegan Diets

Plant-based diets may be effective for the treatment of fibromyalgia, a painful condition suffered by millions.



Beauty Is More than Skin Deep

Some foods appear protective against the development of skin wrinkles—while others may make them worse.



Ergothioneine: A New Vitamin?

If the antioxidant amino acid ergothioneine does indeed turn out to be an essential nutrient, what are the best dietary sources?



Lowering Dietary Antibiotic Intake

What a few days eating vegetarian can do to the levels of antibiotics and phthalates flowing through one’s body.



Biblical Daniel Fast Put to the Test

Within a matter of weeks, participants placed on the vegan diet outlined by the prophet Daniel experienced improvements in blood pressure, cholesterol and insulin levels, insulin resistance, and C-reactive protein levels, a marker of inflammation within the body.



Nuts and Bolts of Cholesterol Lowering

A pooled analysis of studies on nut consumption, cholesterol levels, and risk of death from heart disease show extraordinary benefits, suggesting we should eat nuts every day.



The True Shelf Life of Cooking Oils

Cooking oil manufacturer “best-by” dates are put to the test by comparing the development of rancidity between almond oil, avocado oil, hazelnut oil, macadamia oil, grapeseed oil, rice bran oil, toasted sesame oil, and walnut oil.



Risk Associated with Iron Supplements

Iron is a double-edged sword. If we don’t absorb enough, we risk anemia; but if absorb too much, we may increase our risk of cancer, heart disease, and a number of inflammatory conditions. Because the human body has no mechanism to rid itself of excess iron, one should choose plant-based (non-heme) sources, over which our body has some control.



Plant-Based Diets and Cellular Stress Defenses

Measuring the effects of a plant-based diet on the expression of hundreds of different genes at a time, a research group found that an antioxidant-rich portfolio of plant foods such as berries, pomegranates, purple grapes, red cabbage, oregano, and walnuts was able to significantly modify the regulation of genes in the blood of volunteers.



Kiwifruit and DNA Repair

Plant-based diets help prevent cancer not only by blocking DNA damage, but by increasing our DNA repair enzymes’ ability to repair any damage that gets by our first line of antioxidant defense.



Antimutagenic Activity of Green vs. White Tea

The ability of green versus white tea to protect against in vitro DNA damage caused by a cooked chicken carcinogen (heterocyclic amine).



Anti-Inflammatory Effects of Purple Potatoes

Antioxidant, anti-inflammatory properties of white compared to yellow and purple potatoes. Purple potatoes may also help lower high blood pressure.



Smoking vs. Kale Juice

The effect of kale juice on LDL and HDL cholesterol, and the antioxidant capacity of the blood.



Anti-Inflammatory Antioxidants

Even when choosing the same quantity of fruits and vegetables, those making higher antioxidant choices experienced a reduction in C-reactive protein (inflammation) levels.



Anti Up on the Veggies

Greens rank highest in chemical antioxidant assays (such as ORAC, TEAC, TRAP, and FRAP). But which vegetables lead the pack when cellular antioxidant activity is measured?



Dragon’s Blood

The four most antioxidant-packed natural substances so far tested are cloves, amla (Indian gooseberries), triphala (a combination of amla, bibhitaki, and haritaki fruits), and dragon’s blood.



Amla & Triphala Tested for Metals

Both U.S.-made and imported Ayurvedic dietary supplements have high contamination rates of toxic metals such as mercury—though only a small fraction of the levels found in canned tuna.



Some Ayurvedic Medicine Worse than Lead Paint Exposure

Triphala, a combination of three fruits—amla, bibhitaki, and haritaki—is the most commonly used herbal formulation in Ayurvedic medicine, and may have powerful anticancer properties. Unfortunately, one in five Ayurvedic herbal dietary supplements were found contaminated with lead, mercury, and/or arsenic.



Un desayuno mejor

El poder antioxidante del desayuno estadounidense se compara con un batido de frutos rojos, hojas de té blanco y polvo de grosella espinosa de la India.



Antioxidantes en una pizca

Algunas hierbas y especias—incluyendo la canela, los clavos de olor, el toronjil, la mejorana, el orégano y la hierbabuena—son tan ricas en antioxidantes que sólo una pizca puede servir de mucho.



Better than Goji Berries

There are some dried fruits even more antioxidant-packed than goji berries.



Dried Apples vs. Cholesterol

Which common dried fruit is the most antioxidant-packed: apple rings, dried apricots, dried cherries, dried mango, prunes, or raisins?



Best Berries

Compared to popular fruits such as apples, bananas, and mangoes, which of the hundreds of different berries tested have the most and least antioxidant power: blackberries, blueberries, cranberries, crowberries, dog rose berries, grapes, raspberries, strawberries, or Tahitian noni juice?



Glycotoxins

Advanced glycation end products (AGEs) in our diet are thought to accelerate the aging process.



Egg Cholesterol in the Diet

Cardiology experts warn that eating even a single egg a day may exceed the safe upper limit for cholesterol intake.



Convergence of Evidence

Profile of an editorial published by Dr. Dean Ornish in the American Journal of Cardiology describing the optimal diet, and how simple choices can be as powerful as drugs and surgery.