Arab journal of urology2026n = 200 initially, 174 completed follow-up
RCTHuman
This study tested whether CoQ10, L-carnitine (an amino-acid-like nutrient the body uses to turn fat into energy), or both together improve semen quality in men with low sperm count, poor…
Antioxidants (Basel, Switzerland)2025
Narrative ReviewHuman
This review looked at how oxidative stress (cell damage from unstable molecules called reactive oxygen species, a normal byproduct of metabolism that turns harmful when it outpaces the body's defenses)…
Advances in nutrition (Bethesda, Md.)2018n = 28 articles for qualitative analysis, 15 for quantitative meta-analysis
Meta AnalysisHuman
Infertility affects about 15 percent of the world's population, which is what makes this question worth asking. This systematic review and meta-analysis pooled randomized trials testing whether nutrients, dietary supplements…