Vitamin E is a fat-soluble vitamin that primarily acts as a powerful antioxidant in the body. Its main functions include:
- Protecting cells from oxidative damage by neutralizing harmful free radicals, which helps prevent cellular damage linked to diseases such as cancer, heart disease, eye disorders, and cognitive decline
- Supporting proper immune system function, enhancing the body's defense against infections
- Promoting cellular signaling, regulation of gene expression, and other metabolic processes, including inhibiting enzymes involved in cell proliferation and platelet aggregation, which can benefit cardiovascular health
- Helping maintain the stability and repair of cell membranes by preventing lipid peroxidation, thus preserving cell integrity
- Contributing to healthy skin and vision
Vitamin E exists in several forms, with alpha-tocopherol being the most biologically active and prevalent in the human body
. It is naturally found in foods such as nuts, seeds, vegetable oils, green leafy vegetables, and some fruits
. While vitamin E supplements can reduce oxidative stress in certain populations, excessive supplementation may carry risks, including increased bleeding and other health concerns; obtaining vitamin E through a balanced diet is generally preferred
. In summary, vitamin E protects cells from oxidative damage, supports immune health, aids in cellular functions, and helps maintain skin and eye health.
