In this episode of The Hormone Café, Dr. Sarah Pederson teams up with Physician Assistant Sierra Wolfe to break down one of the most overlooked areas in fertility: men’s reproductive health.
With male factors contributing to 30–60% of infertility cases, understanding sperm health is essential — yet most men never get evaluated.
🧪 How We Test Sperm Health
Most fertility clinics use outdated methods — having men produce a sample alone in a clinic room. But WHO6 guidelines (2021) show sperm quality is higher when collected:
Through intercourseUsing a sterile, non-spermicidal collection condomAt home, in a natural environmentDelivered promptly to the clinic for analysisSierra explains exactly how this works and why it improves sample accuracy and comfort.
🔬 What a Semen Analysis Measures
A semen analysis evaluates both the fluid and the cells. It checks:
Count. How many sperm are present. Motility. How well they move — and whether movement is strong enough to reach the egg. Morphology. Shape of the sperm:Normal vs. abnormal headsNormal vs. abnormal tailsIndicators of DNA fragmentationMorphology helps predict whether a sperm can successfully fertilize an egg.
Semen analysis is the
only definitive test to determine whether male factors are contributing to infertility.
📅 When Men Should Get Tested
Any man planning to conceiveEspecially couples who have tried for a few months without successBecause men’s reproductive cells are uniquely exposed to environmental damage (heat, toxins, age)
Studies now show that men’s fertility declines more sharply with age than previously understood.
🥦 Nutrition for Better Sperm Quality
These foods hurt sperm quality:
Processed meats (sausage, deli meat, brats)Frequent high-fat red meatFast food / fried foodsHigh-sugar dietsHigh-fat dairy (whole milk is good for women — not for men)
These foods help sperm quality:
Oysters (huge zinc boost)Salmon & fatty fish (omega-3s needed for sperm formation)Fruits & vegetables (antioxidants reduce DNA damage)“Oxidative stress is exactly what causes abnormal sperm DNA — antioxidants are essential.”
🍺 Alcohol, Caffeine & Substances
Best: avoid completely while trying to conceiveNo more than 2 drinks at a timeNo more than 7 drinks per weekSperm take 3 full months to regenerate — so 3 months of being alcohol-light = new, healthier sperm.Limit to ≤200 mg/dayAbout 2–3 cups of coffeeConstricts blood vessels → reduces blood flow to testicles → lowers sperm count and quality.THC binds to receptors in the testicles → directly suppresses sperm production.
Men who use regularly have lower counts, poorer motility, and worse morphology.
Testicles must stay 3°C cooler than the rest of the body. Heat exposure damages sperm.
SaunasHot tubsLong hot bathsTight pantsLong bike ridesSitting for hours with legs closed
Cooling Therapy (“Ice the balls”)
Snowballs underwear (ice-pack underwear specifically designed for fertility — Sierra’s favorite)Frozen peas over underwear (never on bare skin)
30 minutes/day significantly improves sperm quality over several months.
💉 Testosterone & Male Fertility
External testosterone acts as male birth control:
Shuts off natural testosterone productionStops sperm production entirelySemen analysis often shows zero sperm
Good news: There are safe ways to raise testosterone without shutting down fertility — and Sierra teaches this to patients daily.
🏋️♂️ Exercise, Sleep & Stress
Best: resistance training + cardioToo much of one type is not idealCardio helps endurance during intercourseStrength training supports testosteroneMissing one night of sleep can drop testosterone by 50%.During sleep, men naturally get erections to increase blood flow to the testicles — crucial for maintaining sperm health.Stress hormones constrict blood vessels → reduces blood flow → affects: Sperm productionTestosteroneLibidoErectile functionLong-term stress = long-term fertility impact.
Male fertility is just as important as female fertility.Sperm health can change significantly in 3 months.Clean nutritionReducing heat exposureCooling therapyLimiting alcohol & caffeineAvoiding nicotine and marijuanaPrioritizing sleep and stress reductionBalanced exercise
Testosterone therapy is not fertility-friendly — there are safer options.
“Easy on the beer, ice your balls, sleep well, eat real food, and your sperm will thank you.”
If you or your partner want to test sperm health, improve male fertility, or get personalized holistic guidance, connect with the Vera team:
📍 Vera Health & Fertility – Westminster, CO
🌐 verafertility.com