Human reproduction update2026n = 32 studies included
Meta AnalysisHuman
This study set out to review how different weight loss methods affect male fertility in men with obesity. It looked at 32 studies that compared lifestyle changes, medications, and bariatric…
Scientific reports2026
Meta AnalysisHuman
This study set out to examine whether astaxanthin (a potent antioxidant) could improve sperm quality after freezing and thawing. It pooled data from multiple studies to see how astaxanthin affected…
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…
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…
Nutrients2025n = 50 studies included
Meta AnalysisHuman
This systematic review and meta-analysis set out to see whether dietary supplements improve male fertility. It pooled 50 randomised trials in which men took a supplement for at least 12…
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,…
Frontiers in pharmacology2024n = 877 (462 CoQ10-treated, 415 untreated/placebo-treated)
Meta AnalysisHuman
This systematic review and meta-analysis set out to assess whether coenzyme Q10 (CoQ10) supplementation improves semen quality and male hormone levels. It pooled data from eight randomized controlled trials involving…