How are dietary supplements regulated?
In 1994, congress passes and the President signed into law the Dietary Supplement Health and Education Act limiting the FDA?s control over dietary supplements. Under this law the FDA can not require pre-market tests to prove that supplements are safe and effective. Secondly, the FDA can not limit the dosage in any dietary supplement. Finally, the FDA can not halt or restrict sales of a dietary supplement unless there is evidence that the product has caused illness or injury “when used according to the direction on the package”.