The first 90 years of vitamin E research has produced prolific and notable discoveries, but until the last few decades, attention has been given mostly to the biological activities and underlying mechanisms of alpha-tocopherol, which we now know is one of more than eight vitamin E isomers. Currently, the non-tocopherol vitamin E molecule tocotrienol has reached a new measure of research height: more than one-third of all vitamin E tocotrienol...