Myths vs facts: Zink and longevity

The provided context lacks direct information on zinc and longevity. Zinc is an essential trace element involved in immune function, DNA repair, and antioxidant defense. Some observational studies suggest that adequate zinc status may support healthy aging, but there is no strong evidence that zinc supplementation extends lifespan in healthy individuals. High doses (>40 mg/day) can be toxic and lead to copper deficiency. The evidence is unclear and not supported by the given sources. Consumers should be cautious of marketing claims linking zinc to longevity and should focus on a balanced diet and proven health practices rather than unvalidated supplements or genetic tests.