What percentage of vitamin E pills are digested?

It depends upon the brand, how it is packaged, what percentage of the pill is actually vitamin E. There are a lot of excipients (ingredients) in a tablet of soft gel. It also depends upon whether or not you eat food with a supplement. There is a study where 20 subjects were given 300 mg of vitamin E either on an empty stomach or with food for 15 days. The ones who took vitamin E on an empty stomach absorbed about 29% but the ones who ate food with vitamin E absorbed about 84%. (ArteriOSclerosis, Thrombosis, and Vascular Biology. 2001;21:e34.)

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