Peer-reviewed research concerning supplements, summarized and appraised in plain language with every source cited.
This systematic review and meta-analysis set out to see whether vitamin D supplements raise testosterone or related markers in men. It pooled randomized trials measuring total testosterone, SHBG (sex hormone-binding…
This study set out to see if creatine supplements work differently when taken with resistance training versus other types of exercise. It pooled data from 39 trials in healthy men…
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…
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…
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…