Mg/I.U – mg is a measure mass and iu is an international measure of biological effect. So…… 1mg of any vitamin will always be the same mass ie 1mg. However, as iu measures biological effect, 1iu of vitamin E will have a different mass to 1iu of vitamin A so, mg do not equate to iu. Brain imploding at this?
The key thing to note here is the form of the vitamin ie our Vitamin E is comprised of tocopherol rich extracts that are far better absorbed than other ‘natural’ vitamin E or chemically synthesised Vitamin E where only one of four isomers is absorbed. Form defines function!