Myths vs facts: Zink and Fruchtbarkeit

Zinc is an essential trace mineral important for fertility, but many claims are exaggerated. In men, zinc deficiency can impair sperm quality – supplementation improves sperm count and motility in deficient individuals, but not in those with adequate levels. In women, zinc is involved in egg maturation and hormone regulation, yet routine supplementation for fertility lacks strong evidence. Most 'fertility boosters' contain zinc, but randomized controlled trials show no clear benefit for conception rates in healthy couples. Excess zinc can be harmful (copper deficiency, nausea). Fact: Zinc deficiency impairs fertility. Myth: Zinc supplements boost fertility in people with normal zinc status. Evidence is moderate – based on observational studies and some RCTs, but insufficient for universal recommendations. A blood test to assess zinc status is advisable before supplementing.