Vitamin E is a fat-soluble antioxidant that exists in eight chemical forms, with alpha-tocopherol being the most active in humans.
Vitamin E is found naturally in vegetable oils, nuts, seeds, and green leafy vegetables.
Function:
1. Antioxidant Protection:
Vitamin E primarily protects cell membranes from oxidative damage by reacting with lipid radicals produced in the lipid peroxidation chain reaction.
2. Anti-inflammatory:
Exhibits anti-inflammatory effects by modulating gene expression and enzyme activity involved in inflammation.
3. Immune Enhancement:
Supports the immune system, especially in the elderly, by protecting lymphocytes from oxidative damage.
4. Photoprotection and Skin Health:
Provides protection against UV-induced damage and may improve skin health by reducing inflammation and promoting wound healing.
Medical Benefits:
Crucial for preventing oxidative stress-related diseases, including cardiovascular diseases, certain cancers, and age-related macular degeneration.
Supplementation may benefit those with dietary deficiencies or increased oxidative stress, though excessive intake has not consistently shown benefits in preventing chronic diseases.