Found in the skin of red grapes, red wine, peanuts, blueberries, and cranberries, resveratrol nutrition supplement is a potent antioxidant with anti-cancer properties.
It has been shown to prolong the lifespan of – and reduce the rate of aging in – roundworms, fruit flies, and yeast because it affects a gene associated with longevity. It has been found that it reduces inflammation in humans that could lead to heart disease, stroke, and type 2 diabetes.
A study showed resveratrol to protect against the development of fatty liver in mice, so resveratrol nutrition supplement may protect also those who like to take alcoholic beverages.
Researchers say that resveratrol nutrition supplement can offset the bad effects of a high-caloric diet and can significantly prolong your lifespan. When applied to the skin, it can also protect from the harmful effects of UV-B. Side effects are anecdotal and include decreased appetite, stomach cramping and diarrhea, tingling and numbness of the hands, arms, legs, and feet, which can happen soon after you take the nutrition supplement. Not so common side effects are skin rashes and joint pains or arthritis.
Derived from whole grape seeds, grape seed extract has a great concentration of vitamin E, flavonoids, linoleic acid, and resveratrol. Based on studies done with mice, this derivative has been found to be rich in proanthocyanidins, which can help shield the skin from cancer-causing ultraviolet rays. It is a stronger scavenger of free radicals than vitamins C and E.
A fairly recent study compared the effect of nutrition supplement of one percent grape seed extract and one percent vitamin C in guinea pigs with hyperpigmentation and found a lightening effect in the group fed with grape seed after six months.
Between fifty and 100 milligrams a day are recommended nutrition supplement. Side effects often include headache, dizziness or nausea, and a dry itchy scalp. It may also increase the clotting time of blood. Not enough scientific information is known, however, about how long-term use of grape seed extract nutrition supplement might affect health.