Zinc

The decision on this page is the chemical form rather than the milligram figure alone. Chelated forms — picolinate and glycinate — are generally chosen for being gentler on an empty stomach than zinc sulphate, and L-OptiZinc is zinc bound to methionine.

Not everything on this page is a general zinc supplement: Doctor's Best PepZin GI is zinc-L-carnosine, a compound taken for the stomach lining rather than for zinc intake, and it is here because of the zinc in its name rather than because it substitutes for the others.

Sustained high-dose zinc can interfere with copper absorption, so duration is worth discussing with your doctor. Related: Minerals, Immune Support and Copper.