Fertility & Sperm

Peer-reviewed research on sperm concentration, motility, DNA fragmentation, and the factors that influence male fertility, including the temperature mechanism Oakman is built around.

40Studies
40Human 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…