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vitamin E (generic name)

a vitamin - treats Atherosclerosis, Seizure disorder, Steatohepatitis, Respiratory infection prevention, Osteoarthritis, Parkinson's disease, Peyronie's disease, Cardiovascular disease in dialysis patients, Cataract prevention, Prostate cancer prevention, Dementia / Alzheimer's disease, Intermittent claudication, Dysmenorrhea, Scar prevention, Uveitis, Cancer prevention, Premenstrual syndrome, G6PD deficiency, Glomerulosclerosis, Antioxidant, Colon cancer prevention, Chemotherapy nerve damage, Retinitis pigmentosa, Heart disease prevention, Supplementation in preterm and very low birthweight infants, Macular degeneration, Altitude sickness, Angina, Immune system function, Stroke, Vitamin E deficiency, Anemia, Allergic rhinitis, Venous thromboembolism, Asthma, Stomach cancer, Hepatitis, Diabetes mellitus, Bladder cancer, High cholesterol, Breast cancer, Healing after photorefractive keratectomy, Breast cancer-related hot flashes, Tardive dyskinesia, and Cancer treatment
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Vitamin E

Category

Herbs & Supplements

Alternate Title

Alpha-tocopherol

Synonyms

All rac-alpha-tocopherol, alpha-tocopherol, alpha tocopherol acetate, alpha tocopheryl acetate, alpha tocotrienol, antisterility vitamin, beta-tocopherol, beta-tocotrienol, d-alpha-tocopherol, d-alpha-tocopheryl, d-alpha-tocopheryl acetate, d-alpha-tocopheryl succinate, d-beta-tocopherol, d-delta-tocopherol, delta-tocopherol, delta-tocotrienol, d-gamma-tocopherol, dl-alpha-tocopherol, dl-alpha-tocopheryl acetate, dl-tocopherol, d-tocopherol, d-tocopheryl acetate, dl-tocopherol, gamma-tocopherol, gamma-tocotrienol, mixed tocopherols, RRR-alpha-tocopherol, Spondyvit®, tocopherol, tocotrienol, tocotrienol concentrate, tocopheryl succinate.

Background

Vitamin E is a fat-soluble vitamin with antioxidant properties. Vitamin E exists in eight different forms ("isomers"): alpha, beta, gamma, and delta tocopherol; and alpha, beta, gamma, and delta tocotrienol. Alpha-tocopherol is the most active form in humans. Dosing and daily allowance recommendations for vitamin E are often provided in Alpha-Tocopherol Equivalents (ATE) to account for the different biological activities of the various forms of vitamin E, or in International Units (IU), which food and supplement labels may use. Vitamin E supplements are available in natural or synthetic forms. The natural forms are usually labeled with the letter "d" (for example, d-gamma-tocopherol), whereas synthetic forms are labeled "dl" (for example, dl-alpha-tocopherol).

Vitamin E has been proposed for the prevention or treatment of numerous health conditions, often based on its antioxidant properties. However, aside from the treatment of vitamin E deficiency (which is rare), there are no clearly proven medicinal uses of vitamin E supplementation beyond the recommended daily allowance. There is ongoing research in numerous diseases, particularly in cancer and heart disease.

Recent concerns have been raised about the safety of vitamin E supplementation, particularly in high doses. An increased risk of bleeding has been proposed, particularly in patients taking blood-thinning agents such as warfarin, heparin, or aspirin, and in patients with vitamin K deficiency. Recent evidence suggests that regular use of high-dose vitamin E supplements may increase the risk of death (from "all causes") by a small amount, although a different study found no effects on mortality in women who took vitamin E daily. Caution is warranted.

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