Zinc
Why we included it
Zinc contributes to normal fertility and reproduction, helps maintain normal testosterone levels, and supports normal DNA synthesis. These processes are involved in reproductive function, hormone regulation, and the production of genetic material needed for healthy cell development.
Works alongside
The research4 studies
- Zinc levels in seminal plasma and their correlation with male infertility: a systematic review and meta-analysisZhao et al. Scientific Reports, 2016A review that pooled earlier studies on zinc levels in men and male fertility.
- Effects of folic acid and zinc sulfate on male factor subfertility: a double-blind, randomized, placebo-controlled trialWong et al. Fertility and Sterility, 2002A placebo-controlled trial of zinc taken with folic acid over 26 weeks.
- Effect of folic acid and zinc supplementation in men on semen quality and live birth among couples undergoing infertility treatment: a randomized clinical trialSchisterman et al. JAMA, 2020A large randomised trial of folic acid and zinc in men whose partners were having fertility treatment.
- Associations of semen essential/non-essential elements with the risk of male infertility: a systematic review and meta-analysisChen et al. Toxicology Letters, 2025A review that pooled studies on mineral levels, including zinc and copper, in men.













