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Sperm Health

Peer-reviewed research concerning sperm health, summarized and appraised in plain language with every source cited.

48Studies

48Human studies

2026Most recent

12Countries

Impact of Vitamin D3 Supplementation on Androgens and Semen Parameters in Infertile Men: A Systematic Review and Meta-Analysis Based on Prospective Randomised Controlled Trials.

Archivos espanoles de urologia2025n = 945 subjects

Meta AnalysisHuman

This study looked at whether vitamin D3 supplementation improves hormone levels and semen quality in infertile men. It pooled data from six randomized controlled trials involving 945 men, measuring changes…

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BMI is associated with sperm quality and sex hormones in men: a meta-analysis.

Frontiers in endocrinology2025n = 8,443 men (3,467 normal BMI, 3,444 overweight, 1,532 obese)

Meta AnalysisHuman

This meta-analysis (a study that statistically pools many earlier studies) looked at how body mass index (BMI, a weight-for-height number used to flag over- or under-weight) relates to sperm quality…

Better Fertility Higher Testosterone Low Testosterone

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Mediterranean Diet, Semen Quality, and Medically Assisted Reproductive Outcomes in the Male Population: A Systematic Review and Meta-Analysis.

Advances in nutrition (Bethesda, Md.)2025n = 2,558 individuals across 11 studies

Meta AnalysisHuman

This study set out to see if sticking to a Mediterranean diet (MedDiet) is linked to better sperm quality and fertility outcomes in men. It pooled data from 11 studies,…

Better Fertility Diet & Nutrition Diet optimization

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