What are tocotrienols?
Vitamin E is a general term used with two subclasses: tocopherols and tocotrienols. Among vegetable oils, palm oil is one of the richest sources of tocotrienols. Tocotrienols are also found in rice bran oil, germ protein of barley, wheat, and rye, and grapeseed oil. Tocotrienols are potent antioxidants and have been found in some cell culture and animal studies to exhibit anti-cancer properties.