Zinc

Zinc is an essential trace mineral that research indicates plays fundamental roles in numerous biological processes relevant to healthy aging. Studies suggest that zinc deficiency becomes more common with age due to reduced absorption and dietary intake, potentially contributing to immune dysfunction, delayed wound healing, and increased oxidative stress. Clinical trials have demonstrated that zinc supplementation may support immune function, particularly in older adults, and research indicates it may help maintain skin health and wound healing capacity.

Research suggests that adequate zinc status is important for cognitive function, with some studies indicating that zinc deficiency may be associated with age-related cognitive decline. Additionally, studies have examined zinc's role in age-related macular degeneration, with the Age-Related Eye Disease Study (AREDS) finding that zinc supplementation, combined with other antioxidants, may help slow progression of advanced AMD. The mineral's antioxidant properties and role in DNA repair mechanisms have led researchers to investigate its potential in supporting cellular health during aging.

While zinc supplementation appears generally safe at recommended doses (8-11mg daily for adults), research indicates that excessive intake can interfere with copper absorption and immune function. Studies suggest that the optimal approach involves maintaining adequate zinc status through diet or moderate supplementation rather than pursuing high-dose protocols, as zinc's benefits appear to follow a U-shaped curve where both deficiency and excess can be problematic.