Studies of the effectiveness of supplements are plentiful–as are the problems often associated with these studies. One common study pitfall is testing supplements in dosages that supplements advocates claim are negligible to arrive at the conclusion that the supplements are not effective.

Most supplement web sites contain scathing reviews of negative studies, but Harvard School of Public Health offers a more balanced view of the factors involved in adequately testing supplements (READ MORE). Reports on the benefits and dangers of supplements may also be too one-sided, as this page explains (CLICK HERE).