What is vitamin E responsible for?

• A. Immune function
• B. Bone health
• C. Antioxidant capacity
• D. Hormone synthesis

Answer: (C)

Vitamin E’s main job is to act as an antioxidant. It sits in cell membranes and in lipoproteins where it donates electrons to neutralize free radicals, especially lipid peroxyl radicals, to stop chain reactions that would damage fats in the membranes. This antioxidant defense helps protect cells from oxidative stress and supports overall cellular health. While vitamin E can influence immune function to some extent, its primary and most well-established role is antioxidant capacity. Bone health and hormone synthesis are not direct functions of vitamin E, which is why the antioxidant description best fits what vitamin E does.