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The term vitamin E describes a family of eight antioxidants, four tocopherols, alpha-, beta-, gamma- and delta-, and four tocotrienols (also alpha-, beta-, gamma- and delta-). Alpha-tocopherol is the only form of vitamin E that is actively maintained in the human body and is therefore, the form of vitamin E found in the largest quantities in the blood and tissue (1). Because alpha-tocopherol is the form of vitamin E that appears to have the greatest nutritional significance, it will be the primary topic of the following discussion. It is also the only form that meets the latest Recommended Dietary Allowance (RDA) for vitamin E.Benefits of Vitamin E
Vitamin E: Alpha-tocopherol- Vitamin E, or alpha-tocopherol, is a leading antioxidant. Vitamin E helps ease respiratory problems, and may also prevent some of the damage that diabetes does to the body, particularly to the eyes. It also boosts your immune system’s ability to fight off infectious diseases by increasing levels of interferon and interleukin, the biochemicals that are produced by the immune system to fight infection.
Vitamin E in Heart Disease - Numerous preliminary and observational studies have looked at the role and benefits of Vitamin E supplements in heart disease. Some previous studies, such as the Nurse Study in 1993 involving 90,000 nurses, associated Vitamin E supplements to lower rate of coronary heart disease by 30 - 40%. Another observational study in Finland involving over 5000 people also suggested that Vitamin E supplements was associated with lower death rate from heart disease.
E vitamin or Vitamin E and Vitamin E for skin is an essential nutrient, meaning that it must be provided by the diet because the body cannot manufacture it. Vitamin E food sources include some vegetable oils, nuts and whole grains (soy is one of the most common natural sources). Tochopherols are naturally occurring substances, which exhibit vitamin E activity. Alpha tocopherol, thought to be the most active form of vitamin E, is commonly found in Nutritional supplement form.
Vitamin E and cataracts - Because of it’s antioxidant action, vitamin E may help to protect against cataracts and age related macular degeneration. Cataracts are growths on the lens of the eye that cloud vision. They increase the risk of disability and blindness in aging adults. Lens clarity, which is used to diagnose cataracts, is better in regular users of vitamin E supplements and in persons with higher blood levels of vitamin E. Uveitis is another eye disorder for which the antioxidant vitamins C and E may be helpful. Uveitis is inflammation of the uvea, the middle layer of the eye between the sclera and the retina.
Anti-Aging Benefits of Vitamin E
Vitamin e added to lotions, creams, and other skin care products, as well as taken orally, plays a role in the anti-aging of skin. It helps skin look younger by reducing the appearance of fine lines and wrinkles. Also, free radicals are believed to play an important role in skin aging and therefore the antioxidant activity is quite valuable for this skin problem.
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