Vitamin E
Vitamin E is a powerful antioxidant which means it neutralises the free radicals that cause cell and tissue damage. In addition your body needs vitamin E to make the red blood cells that enable blood to transport oxygen.
Your body needs vitamin E. Fortunately it is readily available. You can buy the stuff in 50 Kg (110 lb) drums from Nutrakey Industries in China. While you’re about it why not stock up on a 25 Kg (55 lb) drum of vitamin C from the same supplier?