This fat-soluble antioxidant is renowned for its ability to counter lipid peroxidation in fatty tissues in the body. This is of particular importance in cell membranes, where it protects the beneficial, active nature of EFAs, which when sitting in the cell membrane attract oxygen to the cell, but also makes them vulnerable to free radical-producing oxidation. Also, the membrane EFAs AA, DGLA and EPA are converted as needed to eicosanoids - local hormones that control "goings-on" in the cell locale, such as pain /inflammation, blood clotting, vasodilation/ vasoconstriction, bronchoconstriction / bronchodilation, immune system reactions and much more.
The most natural form of Vitamin E (called Gamma-tocopherol) is found in food, and is abundant in nuts, such as walnuts and pecans.
The best choice of Vitamin E supplement is MIXED TOCOPHEROLS, in their natural form. If you buy the cheaper just alpha-tochopherol form, choose the d-alpha tocopherol, not the synthetic dl-alpha alpha-tococopherol).