A free radical is an oxygen molecule which roams the body within search of an electron, sometimes hurtful healthy tissues contained by a process called oxidation. Cell impairment from free radical attack have been related not only to the beginning of early aging, but also to cancer and other degenerative diseases, cataract, autoimmune disorders, arteriosclerosis and rheumatoid arthritis.
As an antioxidant, vitamin E is one of the ways we can fight free radical. We can't live without oxygen, obviously, but we need protection to assure that life-giving oxygen won't effect our cells to deteriorate by finances of oxidation. Vitamin E can offer that protection.
Vitamin E also contributes to prostaglandin metabolism. Too little prostaglandin may exact PMS and circulatory irregularities responsible for night cramps.
Another of the vitamin's protective functions is guarding us against adjectives food preservatives such as nitrates and nitrites used in sausage, ham and other processed meat. In the stomach, these preservatives turn into nitrosamines, strong cancer-causing substances. Vitamin E can block this process. The biological need for vitamin E seem to be limited solely by quantities of other antioxidants contained by the body and by the concentration of free radicals.
Although no specific disease have been related to a less of vitamin E, the vitamin is certainly central for good robustness. Initially observed in 1922 within experiments by biochemists Evans, Scott and Bishop who found the substance in lettuce, vitamin E be first synthesized in 1938. The synthetic form of this vitamin be found to be less potent, gram for gram, than the crude form.
The reason? Natural vitamin E, D-alpha tocopherol, have a higher biological leisure than the corresponding synthetic form. A St. Louis University study showed that our bodies use natural vitamin E more effectively and beneficially than vitamin E derived from a synthetic source.
A study of the literature by Karen Owen, M.S., biochemist and registered dietitian of Alpine, Calif., reveals that researchers at Duke University, the University of California at Los Angeles, the University of California at Davis and the University of Kentucky hold found that vitamin E can protect lung tissue from nitrogen dioxide and ozone in smoggy areas.
Americans ingest just 7 International Units (I.U.s) of vitamin E on a daily basis, when the Recommended Dietary Allowance (RDA) is 30 I.U. and much higher amounts are considered protective and locked, said the researchers. Owens cites one study revealing that 800 I.U. of vitamin E daily for three years cause no ill effects surrounded by human beings.
Owens cited experiments that demonstrated how nitrogen dioxide and ozone attack the lungs, damaging polyunsaturated fatty acids within the lung cell membranes. Pollutants partially burn the fat in lung cell. These partially burned particle, free radicals, devastate or destroy cell in their path.
More than 20 years of studies have revealed that dietary antioxidants such as vitamins E, A, C and the mineral selenium set aside the best possible defense against these air pollutants, according to Owens.
However, fluent vitamin E traps and neutralizes the free radical and protects the lungs more effectively than other antioxidants. Owens refers to a study by Dr. Ching Chow, a University of Kentucky researcher who has tested cigarette smoke and obedient smoke on rats and concludes that vitamin E intake minimizes cell damage cause by cigarette smoke in both the smoker and the sufferer of second hand smoke.
Vitamin E is rotund soluble, which means it will not dissolve surrounded by water and is stored basically in the liver and fatty tissues of the body. The two primary causes for low serum level of vitamin E are too little intake due to a bad diet or destruction of the nutrient by overprocessed or overcooked foods, or digestive disorders due to gallbladder or liver dysfunction. (A water-soluble vitamin E is immediately available in vigour food stores for people who hold these medical conditions).
No one knows for infallible how much of this nutrient is optimal, because no deficiency symptom have been found. However, heaps biochemists believe that the daily intake of a vitamin E supplement should be no lower than 100 I.U.
Much epidemiological evidence suggests that family with elevated blood levels of vitamin E hold a lower risk of cancer -- particularly of the colon, stomach, lungs and womanly organs.
If you are concerned about toxicity from taking too much vitamin E, double-blind, placebo-controlled studies of day by day intakes of 600 to 3,200 I.U. for three weeks to six months disclosed only a few minor side effects and no main ones.
Vitamin E, when liberally supplied, enable muscles and organs to do the same amount of work while using smaller number oxygen. This is accomplished by increasing the muscles' success in oxygen uptake and by protecting the muscles against deleterious substances produced when blood sugar is converted into energy.
Vitamin E is more than ever important to the heart and circulatory system. If this vitamin is undersupplied, danger of blood clot formation are increased. Blood clots can cause heart attacks, strokes and phlebitis (inflammation of blood vessels).
One of the most important reasons alternative doctors administer vitamin E after heart attacks is that it open up new channel of blood supply (collateral circulation) when an artery is partially or totally blocked.
Vitamin E also widen smaller blood vessels and strengthens capillary walls. By increasing blood supply to an artificial area, it also help to generate new skin and seem to inhibit the overproduction of scar tissue.
Vitamin E's key function is as an antioxidant and free radical scavenger. In some of its body functions, the essential mineral selenium can spare vitamin E. With a day after day intake of selenium, you can obtain maximum protective goings-on with a lower potency of vitamin E.
By taking vitamin E regularly, you may not see or discern a difference in the short possession, because the major pains of this nutrient are at the cellular level. However you will be providing your system beside a powerful insurance policy to protect you against internal and external toxicity.
PHOTO : Vegetable oils are rich surrounded by vitamin E.
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