So your partner's been diligently taking her prenatals, tracking her cycle, doing all the things — and somewhere along the way, someone mentioned that maybe you should be doing something, too. Maybe a supplement. Maybe a lifestyle tweak. Maybe both. It's a fair instinct, and it's backed by a real number: male factors contribute to roughly half of all infertility cases.
But which supplements actually matter, and which ones are just expensive pee?
What the evidence actually shows before you spend anything
Supplements for male fertility are cheap, low-risk, and plausibly helpful. That's the honest pitch, and it's a weaker one than most brands want you to hear.
The most comprehensive look at the evidence is a 2022 Cochrane systematic review that analyzed 90 randomized trials involving 10,303 subfertile men. It found that antioxidant supplementation may increase live birth rates (odds ratio 1.43), but rated the certainty of that finding as very low. The reason: only 12 of those 90 studies even reported live birth as an outcome. Cochrane's own conclusion is that the evidence remains inconclusive.
That's the reframe no competitor roundup makes: nearly every study cited in this category measures sperm parameters (count, motility, morphology), not the outcome you actually care about, which is a baby.
That said, the downside risk is minimal, the cost is low relative to a single treatment cycle, and the American Society for Reproductive Medicine (ASRM) supports optimizing male health before conception. Male factors are a contributing cause in about 50% of couples experiencing infertility, according to a review published by the National Library of Medicine. Spermatogenesis, the full cycle of sperm production, takes roughly 74 days, which means any intervention needs at least that long to show up in a semen analysis. Three months of a well-formulated supplement is a reasonable bet; it's just not a guarantee.
Vitamins for sperm health: what to look for on the label
Before picking a product, know what separates a credible supplement from a marketing exercise. Here are three things to check on any label:
Third-party testing: Look for NSF Certified, USP Verified, or an equivalent seal. This confirms that what's listed on the label is what's in the capsule.
Methylated folate (5-MTHF): Up to 40-60% of the population carries an MTHFR variant, which can modestly reduce folate levels from standard folic acid. Some people prefer methylated folate for this reason, though current research (including from the CDC) suggests regular folic acid is still effective for most people regardless of genotype.
Transparent per-ingredient dosing: If a product uses a "proprietary blend" that lumps six ingredients under one combined weight, you can't tell whether any individual ingredient reaches a studied dose.
Supplements to increase sperm count
Folate (as 5-MTHF), 400-1,000 mcg: Supports DNA synthesis during spermatogenesis; low folate is associated with reduced sperm concentration.
Zinc, 15-30 mg: Essential for testosterone production and sperm cell division; deficiency is directly linked to low count.
Selenium, 200 mcg: Protects developing sperm from oxidative damage; works synergistically with zinc. (200 mcg is the dose used in most fertility studies; don't exceed 400 mcg/day total from all sources.)
Vitamin D, 1,000-2,000 IU: Vitamin D receptors are present on sperm cells, and deficiency correlates with lower count and motility.
Supplements for sperm motility
CoQ10 (as ubiquinol), 100-300 mg: Fuels mitochondrial energy production in the sperm tail; the most-studied single ingredient for motility. For a deeper look at how this compound works, see this overview of CoQ10 and its effects on fertility outcomes.
L-carnitine, 1,000-2,000 mg: Shuttles fatty acids into mitochondria for energy; supports both motility and overall sperm concentration.
Omega-3s (DHA/EPA), 1,000-2,000 mg combined: DHA is a structural component of the sperm membrane; adequate levels improve fluidity and forward progression.
Vitamins C and E function as supporting antioxidants across both count and motility pathways, so they belong in a comprehensive formula rather than needing standalone attention.
The best male fertility supplements, compared
Six products, evaluated on ingredients, dosing transparency, testing, and price. Every dose and price point below was verified directly from the manufacturer's current label or product page.
Best overall: Beli Vitality
Who it's for: Men who want comprehensive coverage in a single daily dose. Key ingredients: L-carnitine, CoQ10, zinc, folate (as 5-MTHF), vitamins C, D, and E, selenium. Third-party tested: Yes. Format: 30-day supply. Price: ~$50/month. The trade-off: Premium price, but one of the few formulas that hits studied doses across multiple categories without a proprietary blend.
Best for low sperm count: Theralogix ConceptionXR
Questions Women Are Asking
Who it's for: Men with a semen analysis showing low concentration. Key ingredients: Zinc (30 mg), folate (as 5-MTHF), vitamin C, vitamin E, selenium, L-carnitine. Motility Support formula adds CoQ10. Third-party tested: NSF Certified. Format: 30-day supply. Price: ~$40-55/month depending on formula. The trade-off: The base formula omits CoQ10; you need the upgraded version for motility support, which adds cost.
Best for sperm motility: Molecular Fertility Male Preconception+
Who it's for: Men whose semen analysis flagged motility as the primary concern. Key ingredients: CoQ10 (200 mg as ubiquinol), L-carnitine, omega-3s, zinc, folate. Third-party tested: Yes. Format: 30-day supply, multiple capsules per day. Price: ~$60/month. The trade-off: High pill burden (multiple capsules daily) and a higher price point, but it's one of the few products dosing CoQ10 in the clinically studied range.
Best men's fertility multivitamin: FullWell Men's Multivitamin
Who it's for: Men who want fertility support plus general nutritional coverage. Key ingredients: Methylated B vitamins, zinc, selenium, CoQ10, vitamin D, vitamin E, choline. Third-party tested: Yes. Format: 30-day supply. Price: ~$54/month. The trade-off: Doubles as a daily multivitamin, which is efficient, but men already taking a multi could end up duplicating certain nutrients.
Best budget option: Needed Sperm Support+
Who it's for: Men looking for a focused formula without paying premium prices. Rescripted may earn a commission or have a partnership with this brand — this is disclosed for transparency. Key ingredients: CoQ10, zinc, folate, selenium, vitamin C, vitamin E. Third-party tested: Yes. Format: 30-day supply. Price: ~$35/month. The trade-off: Streamlined ingredient list keeps cost down, but lacks L-carnitine and omega-3s that pricier options include.
Best CoQ10 add-on: O Positiv Preggo Sperm Health Support
Who it's for: Men who are already on a multivitamin and want targeted CoQ10 and antioxidant support. Rescripted may earn a commission or have a partnership with this brand — this is disclosed for transparency. Key ingredients: CoQ10, zinc, vitamin C, vitamin E, selenium. Third-party tested: Check current label for specific certification. Format: 30-day supply. Price: ~$30/month. The trade-off: Not a standalone fertility supplement; works best stacked with a quality multivitamin, which adds total monthly cost.
What's not worth your money
Skip any product that hides behind a proprietary blend. If you can't see individual doses, assume they're underdosed. Avoid formulas listing CoQ10 below 100 mg, which falls short of the ranges used in clinical research. Be skeptical of anything promising a specific count increase ("boost sperm by 200%!") or results in under three months, since that timeline contradicts basic biology.
Testosterone boosters marketed for fertility deserve particular caution: exogenous testosterone can actually suppress sperm production, which is the opposite of the goal. And peptides marketed online for male fertility (BPC-157, kisspeptin analogs) are largely unapproved, sold through gray-market channels, and lack any meaningful evidence base for improving reproductive outcomes.
When supplements aren't the answer
Testosterone replacement therapy (TRT) suppresses the hormonal signals that drive sperm production. Many men on prescribed TRT, or using anabolic steroids, don't realize this. No supplement stack overcomes that mechanism.
Varicocele, obstruction, hormonal disorders, and azoospermia (zero sperm in the ejaculate) are all treatable conditions, but they require a reproductive urologist, not a multivitamin. If a semen analysis comes back significantly abnormal, the next step is a specialist, not three months of supplementing and hoping. It's also worth knowing that standard semen analysis doesn't tell the whole story — sperm DNA fragmentation testing is one diagnostic tool that often gets overlooked.
A script worth borrowing at your next appointment: "Can I get a referral to a reproductive urologist, and could any of my current medications be affecting my count?"
How long male fertility supplements take to work
Spermatogenesis takes approximately 74 days from start to finish. That means any supplement needs a minimum of two to three months before its effects would show up on a repeat semen analysis. Most reproductive endocrinologists recommend a repeat analysis at the three-month mark to assess change.
If you're heading into an IVF or IUI cycle, start supplementation at least three months before the cycle and coordinate with your clinic.
Lifestyle factors that work alongside supplements
Heat exposure: Laptops on laps, hot tubs, saunas, and tight underwear elevate scrotal temperature. Sperm production requires temperatures slightly below core body heat. Small changes here are free and evidence-backed.
Smoking, alcohol, and recreational drugs: All three are associated with reduced sperm quality. A meta-analysis of lifestyle factors found dose-dependent negative effects on count, motility, and morphology.
Sleep and stress: Poor sleep and chronic stress elevate cortisol, which interferes with testosterone and sperm production. Seven to nine hours of sleep and basic stress management aren't luxuries — they're reproductive health interventions.
Diet: A Mediterranean-style diet rich in fruits, vegetables, whole grains, fish, and nuts is consistently associated with better semen parameters compared to processed-food-heavy diets. For a broader breakdown of how nutrition and daily habits affect sperm quality, this guide on lifestyle and nutrition tips for improving sperm health covers the evidence in detail.
Start before you think you need to
Men are half of the TTC equation. If your partner is already taking prenatals, matching that effort with a male fertility supplement isn't redundant; it's doing your part. Prenatals optimize egg health and early pregnancy nutrition, while male fertility supplements optimize the sperm that's contributing 50% of the DNA.
You don't need a diagnosis to start. A quality supplement with transparent dosing, third-party testing, and ingredients backed by the research outlined above is a low-cost, low-risk step you can take today. Pair it with the lifestyle basics, get a baseline semen analysis if you haven't, and give it the full 74-day window before evaluating. The comparison above should help you pick a product that matches your situation and your budget. From there, consistency does the rest.
