Every intervention Outliyr has scored for male fertility, ranked by its BioHarmony score for this use case rather than its overall rating. The number beside each name is how well that one thing works for male fertility; the tier beside it is what it is worth once safety, cost and effort are counted across everything else.
31 of 84 evaluated interventions score 3.0+ out of 10 for male fertility · 8 comparisons
Shilajit fertility male earns 7.5/10 because Biswas 2010 anchors the most relevant signal. Shilajit fits fertility male when purified resin is matched to hormones, sperm parameters, strength fatigue, bone markers, or energy…
Read the Shilajit report →Fertility-male scores 7.0/10 because Salman Yazdi 2014 found 830 nm irradiation improved human sperm motility in a controlled setting. That makes the male-fertility claim more concrete than most wellness-device claims. The caveat…
Read the Red Light Therapy report →Fertility-male scoring is 6.5/10 because Semaglutide can improve the obesity and insulin-resistance context that often suppresses testosterone and sperm quality, while direct male-fertility trials remain limited. Moiz 2024 supports large weight-loss effects,…
Read the Semaglutide report →For fertility male, Ashwagandha earns 6.0/10 because the evidence points to a plausible use case without proving a universal response. Lopresti et al. 2019 is the best anchor here because it reports…
Read the Ashwagandha report →Current audit data show no male-fertility randomized trial for Tirzepatide, so direct evidence is absent Franco 2025. Tirzepatide may improve fertility-male outcomes indirectly by reducing obesity and improving glycemic control, factors known…
Read the Tirzepatide report →The strongest male fertility argument for Astaxanthin is 5.5/10 because Maleki-Hajiagha 2024 reports 4 clinical RCTs; 143 participants in main ART outcome meta-analysis; oocyte maturation and follicular-fluid total antioxidant capacity improved, while…
Read the Astaxanthin report →For fertility-male, Tongkat Ali lands at 5.3/10 because Tambi 2012 supports the strongest part of the claim. The existing rationale points to this narrower claim: the cited study and the cited study…
Read the Tongkat Ali report →A 5.0/10 for fertility-male fits Zone 2 Cardio because Kodama 2009 supports direction more than certainty. The existing rationale points to this narrower claim: Moderate exercise can support male fertility through metabolic…
Read the Zone 2 Cardio report →For users targeting male fertility, Taurine earns 5.0/10 because Tzang 2024 reports 25 RCTs and 1024 participants; lower SBP, DBP, fasting blood glucose, and triglycerides; no significant adverse-effect excess. Tzang 2024 points…
Read the Taurine report →Male fertility earns 5.0/10. Several RCTs and meta-analyses report that CoQ10 improves sperm concentration, motility, and morphology and lowers seminal oxidative stress, with a coherent antioxidant mechanism. The honest limit is that…
Read the Coenzyme Q10 (CoQ10 / Ubiquinol) report →High-Dose Melatonin has a borderline male-fertility score from antioxidant plausibility rather than a strong male fertility trial base. Oxidative stress matters for sperm quality, but the verified high-dose corpus is stronger for…
Read the High-Dose Melatonin report →Male fertility support has direct kisspeptin-10 evidence, which is why it clears the high bar even though the data set is small. Intravenous kisspeptin-10 produced a dose-dependent LH rise and, on continuous…
Read the Kisspeptin-10 report →Male fertility support is real but extrapolated, which is why it lands high yet under 5. Pulsatile GnRH and hCG plus hMG both induced virilization and spermatogenesis in men with hypogonadotropic hypogonadism…
Read the Gonadorelin (GnRH) report →No direct male-fertility evidence was verified for EAA supplementation. Do not extrapolate from general protein nutrition.
Read the Essential Amino Acids report →Male fertility and erectile-function data are small and heterogeneous; Maleki-saghooni 2018 supports erectile-function direction but not robust semen-parameter certainty.
Read the Saffron report →No direct male fertility evidence. Vibration should not be treated as a fertility protocol.
Read the Whole-Body Vibration report →No direct male-fertility indication exists. Any benefit is likely secondary to improved metabolic health in insulin-resistant men.
Read the Metformin report →No direct male-fertility data for Ca-AKG. Do not extrapolate from unrelated AKG salts or mitochondrial fertility studies.
Read the Ca-AKG (Calcium Alpha-Ketoglutarate) report →Ciftci 2009 (n=120) found 600 mg/day improved semen volume, motility, and viscosity over three months, but not concentration or morphology. A modest adjunct, not a proven fertility cure.
Read the NAC (N-Acetylcysteine) report →Testicular heat exposure can transiently reduce sperm parameters, which makes infrared sauna a poor fit for men actively trying to conceive. Use torso-only exposure, shorter sessions, or a pause window when conception…
Read the Infrared Sauna report →The corrected male-infertility source Hosseini 2018 supports sperm motility and seminal DHA signals, but the effect is modest and dose-dependent.
Read the Omega-3 report →Male fertility scores 3.5/10. Vitamin C is an antioxidant present in seminal fluid and has been studied for sperm quality on oxidative-stress grounds, but the human trial evidence is small, mixed, and…
Read the Vitamin C (Ascorbic Acid) report →Antioxidant support of sperm parameters is plausible through the broader thiol pathway, and NAC has some fertility data, but GlyNAC-specific human fertility evidence is absent. Scores 3.5/10.
Read the GlyNAC (Glycine + N-Acetylcysteine) report →No human male-fertility trial has tested C15:0 supplementation for sperm count, motility, morphology, testosterone, or pregnancy outcomes. Wang 2024 (Wang 2024) is not a male-fertility study, but its developmental and maternal-metabolic findings…
Read the C15 (Pentadecanoic Acid) report →Moderate exercise supports metabolic and hormonal health, while excessive intensity can impair recovery. Norwegian 4x4 is not a direct male-fertility protocol.
Read the Norwegian 4×4 report →Khamidova 2005 rat reproduction study showed restoration of stress-violated spermatogenesis (PMID 16047676). Animal-only signal; not a human fertility intervention.
Read the Bromantane (Ladasten) report →Antioxidant logic exists but no human male-fertility trial of ergothioneine supports a benefit.
Read the Ergothioneine report →Antioxidant support of sperm parameters is plausible and lightly studied for the broader thiol pathway, but glutathione-specific human fertility evidence is limited, scoring 3.0/10.
Read the Glutathione (GSH) report →Despite the phyto-androgen marketing, there is no human fertility or sperm-parameter study for pine pollen; the claim is mechanism and tradition only.
Read the Pine Pollen report →Nothing matches those filters.
Head-to-head reports and category rankings that name a winner on this use case.
Shilajit at 7.4, phosphatidylserine at 7.3, tongkat ali at 7.0. TRT ranks seventh at 5.7 and wins nine of the eleven use cases outright. That inversion is the…
The scores tie at 6.3 and 6.4 and every shared subrating sits within half a point, so the numbers decide nothing. Access and evidence decide it. Gonadorelin is…
Kisspeptin-10 scores 6.4 and TRT 5.7, and TRT still wins 13 of the 15 use cases both reports score. The higher number reflects dependency and reversibility, not effect.…
Shilajit scores 7.4 and ashwagandha 6.8, but that gap is the least useful number here. These two do different jobs. Shilajit is the mineral and androgen play: male…
Ashwagandha scores 6.8 and tongkat ali 7.0, so the overall numbers do not decide it. Pick ashwagandha when stress, anxiety, or sleep is the complaint: its subratings there…
NAC scores 8.0 and glutathione 6.2, and that gap is real. NAC is the cheaper upstream precursor with a six-decade clinical record, so start there. Glutathione earns its…
Red light therapy scores 8.0 and infrared sauna 7.4, so buy the panel first. It costs less, targets skin, hair, joints and recovery directly, and carries higher evidence…
CoQ10 scores 7.1 and urolithin A scores 6.5, so CoQ10 wins on the numbers and costs two to six times less. It takes cardiovascular, energy, antioxidant and both…
Shilajit, at 7.5 out of 10 for male fertility. Shilajit fertility male earns 7.5/10 because Biswas 2010 anchors the most relevant signal.
Of the top-scoring options, Glycine is the least expensive at about $2 a month, scoring 4.5 out of 10 for male fertility.
31 of the 84 interventions evaluated for male fertility score 3.0 out of 10 or better, which is the cut-off for appearing on this page.
