What role does Zink play in longevity?

The role of zinc in longevity is not scientifically conclusive. Zinc is an essential trace element that acts as a cofactor for over 300 enzymes, including those involved in DNA repair, antioxidant defense (e.g., superoxide dismutase), and immune function. Zinc deficiency can contribute to oxidative stress, immune dysfunction, and accelerated cellular aging—factors that could theoretically shorten lifespan. However, no robust human studies demonstrate a direct extension of lifespan through zinc supplementation. Some epidemiological data show an association between low zinc status and increased mortality in older adults, but this is not causal. Moreover, excessive zinc intake can be toxic and impair copper absorption, leading to adverse health effects. The evidence is therefore 'mixed': there are mechanistic and observational hints, but no strong clinical proof of a life-extending effect. Consumers should not focus on single nutrients for longevity but rather on a balanced diet and healthy lifestyle. The DNA tests mentioned in the context (e.g., GPX1) have only small effects and do not replace medical advice.