What to watch with Zink and longevity?

Zinc is an essential trace mineral critical for immune function, DNA repair, and antioxidant enzymes – all processes linked to longevity. Some evidence suggests optimal zinc status may reduce oxidative stress and protect telomere length. However, direct evidence that zinc supplementation extends human lifespan is weak. High doses can be toxic (copper deficiency, immune suppression). For supplementation, blood zinc levels should be measured, as both deficiency and excess are harmful. General advice: obtain zinc from diet (oysters, meat, nuts) and supplement only if deficiency is confirmed. Be mindful of interactions with copper and iron.