Zinc at 45 mg of elemental zinc daily as acetate or gluconate administered in the post absorptive state (2-3 h after dinner) has been shown to reduce cardiovascular risk. Zinc has been shown to be deficient in 30% of some elderly
populations and has shown therapeutic value in slowing age-related macular degeneration, cardiovascular risk markers and infections. Doses of elemental zinc of 50 mg or more should be taken with 1 mg of copper. Serum levels of zinc are the most clinically efficient way to assess for zinc status.
[J Trace Elem Med Biol. 2014 Oct;28(4):364-371. 50683