Myths vs facts: Zink and Sport

Zinc is an essential trace mineral critical for immune function, protein synthesis, and wound healing – all relevant for athletes. A common myth is that zinc supplements directly boost athletic performance. Evidence indicates that supplementation is only beneficial when a deficiency exists. In well-nourished individuals, extra zinc does not enhance performance and may cause side effects like nausea, copper deficiency, or immune dysfunction at high doses. Another myth: zinc significantly raises testosterone. Studies show modest effects only in men with low baseline levels, not in healthy individuals. The claim that zinc prevents muscle cramps lacks strong scientific support. Fact: Athletes lose zinc through sweat, slightly increasing their requirement, but this is usually met through a balanced diet rich in meat, seafood, nuts, and seeds. A blood test (e.g., MyBody-X biomarker) can assess individual status. Without confirmed deficiency, supplementation is not recommended. Evidence: human-moderate, but not from the provided context.