ABSTRACT
Hundreds of papers have been published on various biological aspects of zinc. Many of these involve human supplementation studies. Yet, there is much that we still don’t know about zinc. We do know that zinc can affect numerous biological processes. In fact, it’s hard to think of a human body process where zinc is not involved. For this reason, many claims have been made about zinc supplementation and health. Some of these claims are supported by at least some research, but there are still a lot of uncertainties. The majority of the claims focus on correcting marginal deficiencies, though some claims involve getting “extra” zinc above the RDA.
