Vitamin E refers to a group of eight fatsoluble compounds that include both tocopherols and tocotrienols. so dietary supplement products are usually in the form of the vitamin.
γ-tocopherol is the most common in the North American diet. γ-Tocopherol can be found in corn oil, soybean oil, margarine, and dressings.
Alpha-tocopherol is a lipid-soluble antioxidant, the most biologically active form of vitamin E, is the second-most common form of vitamin E. This variant can be found most abundantly in wheat germ oil, sunflower, and safflower oils.