Wednesday, February 20, 2008

OMEGA-3 FATTY ACIDS - For Soft, Smooth Skin

These supplements aren't just making headlines for preventing heart disease—dermatologists are recommending them to help heal dry skin and the rough, red, scaly patches of psoriasis and eczema. "Countless studies show that increasing the consumption of omega-3 oils improves these conditions," says Baumann. In one study published in the British Journal of Dermatology, volunteers with severe dermatitis taking high levels of omega-3s (6 g) saw a 30% decrease in symptoms. Psoriasis sufferers experienced similar results in other research.

It's easy to see why omega-3s are crucial to skin health: Besides being an integral part of the membranes that surround our skin cells, these essential fats—which must be obtained from diet or supplements because our bodies cannot make them—are a key component of the lubricating layer that keeps skin supple. They also aid in the production of hormones that improve skin texture and help combat the inflammatory damage wrought by free radicals—one of the causes of wrinkles and blotchiness. This is likely why sun-sensitive people may be significantly less prone to burning after omega-3 supplementation, according to one study.

Eating fish such as salmon, mackerel, and albacore tuna—good sources of omega-3s—twice a week and taking supplements are easy ways to increase your intake. For better skin, Baumann recommends taking 1,000 mg of omega-3 oils a day—about the same dosage recommended to keep your ticker in good shape.

Wednesday, February 13, 2008

Anti-aging Foods

Olive Oil

Four decades ago, researchers from the Seven Countries Study concluded that the monounsaturated fats in olive oil were largely responsible for the low rates of heart disease and cancer on the Greek island of Crete. Now we know that olive oil also contains polyphenols, powerful antioxidants that may help prevent age-related diseases.






Yogurt

In the 1970s, Soviet Georgia was rumored to have more centenarians per capita than any other country. Reports at the time claimed that the secret of their long lives was yogurt, a food ubiquitous in their diets. While the age-defying powers of yogurt never have been proved directly, yogurt is rich in calcium, which helps stave off osteoporosis and contains "good bacteria" that help maintain gut health and diminish the incidence of age-related intestinal illness.




Fish

Thirty years ago, researchers began to study why the native Inuits of Alaska were remarkably free of heart disease. The reason, scientists now think, is the extraordinary amount of fish they consume. Fish is an abundant source of omega-3 fats, which help prevent cholesterol buildup in arteries and protect against abnormal heart rhythms.



Chocolate

The Kuna people of the San Blas islands, off the coast of Panama, have a rate of heart disease that is nine times less than that of mainland Panamanians. The reason? The Kuna drink plenty of a beverage made with generous proportions of cocoa, which is unusually rich in flavanols that help preserve the healthy function of blood vessels. Maintaining youthful blood vessels lowers risk of high blood pressure, type 2 diabetes, kidney disease and dementia.



Nuts

Studies of Seventh-Day Adventists (a religious denomination that emphasizes healthy living and a vegetarian diet) show that those who eat nuts gain, on average, an extra two and a half years. Nuts are rich sources of unsaturated fats, so they offer benefits similar to those associated with olive oil. They’re also concentrated sources of vitamins, minerals and other phytochemicals, including antioxidants.




Blueberries

In a landmark study published in 1999, researchers at Tufts University’s Jean Mayer Human Nutrition Research Center on Aging fed rats blueberry extract for a period of time that in "rat lives" is equivalent to 10 human years. These rats outperformed rats fed regular chow on tests of balance and coordination when they reached old age. Compounds in blueberries (and other berries) mitigate inflammation and oxidative damage, which are associated with age-related deficits in memory and motor function.