The Men's Fertility Nutrition Podcast

Episode SummaryA lot of fertility advice sounds confident and certain, but the underlying evidence is often more nuanced. In this episode, Alex breaks down how to think critically about fertility nutrition research, why studies sometimes conflict, and how clinicians make practical decisions when certainty is limited.Rather than chasing perfect answers, this episode explains how to interpret evidence in the real world and focus on what is most likely to matter. What You’ll LearnWhy fertility nutrition evidence is rarely black and whiteCommon reasons studies appear to conflictThe challenges of studying nutrition in humansWhy one study rarely tells the full storyFour practical filters to assess research claimsThe difference between semen parameter outcomes and fertility outcomesWhy foundations usually matter more than hype Key TakeawaysEvidence-based practice is about making good decisions under uncertaintyMixed findings do not automatically mean research is uselessPopulation, intervention, outcome, and consistency all matter when judging evidenceImprovements in biomarkers do not always translate to pregnancy or live birth outcomesDiet quality, sleep, alcohol, body composition, and overall health remain core priorities The Four Filters DiscussedPopulation — who was actually studied, and does it apply to you?Intervention — what was tested, at what dose, and for how long?Outcome — did it improve semen parameters or real fertility outcomes?Consistency — is it a one-off finding or repeated across studies? Why This MattersMen trying to conceive are often targeted with bold claims around supplements, diets, and quick fixes. Understanding how evidence works helps you avoid overreacting to headlines, wasting money, or missing the bigger picture.Good decisions are usually built on patterns of evidence, not isolated claims. What’s NextNext episode: Zinc for Male Fertility — where the evidence is stronger, where it is weaker, and how to think about supplementation in practice. DisclaimerThis podcast is for general education only and does not replace personalised medical, nutrition, or fertility advice. Please speak with your healthcare team about your individual situation.Links: www.axisdietetics.com

Episode SummaryIn this episode, Men’s Fertility Dietitian Alex Hardy breaks down antioxidants and their role in male fertility. While the biological rationale is strong, the clinical outcomes are far less consistent. We explore how oxidative stress affects sperm, why antioxidants are often recommended, and what the research actually shows when it comes to semen parameters, DNA fragmentation, and fertility outcomes. This episode builds on the previous discussion of DNA fragmentation and sets up a more targeted look at individual nutrients in upcoming episodes.What You’ll LearnWhat oxidative stress is and why sperm are vulnerable to itHow antioxidants are thought to support sperm healthWhat clinical trials and meta-analyses showWhy results across studies are inconsistentThe difference between improving semen parameters and improving fertility outcomesWhere antioxidants may fit in practiceKey TakeawaysAntioxidants make biological sense, but outcomes are inconsistentSome studies show improvements in sperm parameters, others show little or no effectEvidence for improved pregnancy or live birth outcomes is limited and low certaintyImprovements in lab markers do not consistently translate into real-world fertility outcomesBlanket supplementation is unlikely to produce reliable resultsAntioxidants are best used as targeted tools, not default solutionsEpisode OutlineOxidative stress and sperm vulnerabilityBiological rationale for antioxidantsWhat clinical research shows Cochrane reviews and mixed evidenceThe MOXI trial and what it tells usWhy results vary across studiesDiet patterns versus isolated nutrientsWhere antioxidants fit clinicallyPractical ConsiderationsFocus on the foundations first — diet, lifestyle, and metabolic healthAvoid assuming more antioxidants equals better outcomesBe cautious with supplement stacking and high-dose combinationsConsider whether there is a clear indication, such as oxidative stress riskUse supplements deliberately, not as a starting pointWhat’s NextIn the next episode, we take a more targeted approach by looking at one of the most studied nutrients in male fertility, CoQ10, and where it fits in practice.DisclaimerThis podcast is for general education only and does not replace personalised medical or nutrition advice. If you are trying to conceive or undergoing fertility treatment, discuss your individual situation with your healthcare team.LinksWebsite: www.axisdietetics.comInstagram: @axisdieteticsIf you’re trying to work out what actually matters in your situation and where to focus your efforts, you can book a Sperm Health Assessment at www.axisdietetics.com.

Episode SummarySemen analysis provides a set of numbers, but those numbers are often misunderstood. In this episode, Men’s Fertility Dietitian Alex Hardy explains how to interpret the key parameters — sperm count, motility, and morphology — and why they need to be viewed together rather than in isolation.We break down what each parameter represents, how reference ranges are defined, and why results don’t always align neatly with fertility outcomes. This episode focuses on helping men move beyond confusion and use their results as a starting point for informed decision-making.What You’ll LearnWhat sperm count, motility, and morphology actually measureWhy semen analysis does not provide a single “fertility score”How each parameter reflects a different aspect of sperm functionWhy results must be interpreted together, not individuallyHow WHO reference ranges are defined and what they mean in practiceWhy semen analysis results can vary over timeWhat semen analysis does — and does not — tell us about fertilityKey TakeawaysSemen analysis is a screening tool, not a diagnosisSperm count, motility, and morphology reflect different biological processesNo single parameter determines fertility on its ownReference ranges are statistical, not pass–fail cut-offsResults can vary, so repeat testing is often neededSemen analysis provides useful information, but not the full picturePractical TakeawaysAvoid over-interpreting a single resultLook at patterns across parameters, not individual numbersUnderstand that “normal” does not necessarily mean optimalConsider repeat testing if results are borderline or unexpectedFocus on modifiable factors such as diet, lifestyle, sleep, and overall healthWhat’s NextIn the next episode, we look at one of the key limitations of standard semen analysis — sperm DNA fragmentation — and when more advanced testing may be useful.DisclaimerThis podcast is for general education only and does not replace personalised medical or healthcare advice. If you have concerns about fertility or test results, speak with your doctor or qualified healthcare professional.Want Support?If you want help understanding your results or improving sperm health through nutrition and lifestyle, you can book a Sperm Health Assessment at www.AxisDietetics.com or find me on Instagram at @axisdietetics

Episode overviewSleep is often overlooked when people think about fertility, yet it plays an important role in the hormonal environment that supports sperm production.In this episode, Alex explains how sleep patterns influence testosterone rhythms, why consistent sleep helps regulate key hormonal signals, and how disrupted sleep can gradually shift the environment sperm develop in.This episode continues the foundation series on sperm health, helping men understand how everyday habits influence fertility long before testing or treatment decisions come into the picture.In this episode, we cover:How sleep influences testosterone rhythms in menWhy hormonal signalling during sleep supports sperm productionWhat research suggests about sleep restriction and testosterone levelsThe connection between sleep disruption and semen parametersHow alcohol can indirectly affect sperm health through its effects on sleepCommon lifestyle patterns that shorten or disrupt sleepPractical habits that support consistent, restorative sleepKey takeaways:Sleep plays an important role in regulating the hormonal signals that support sperm productionTestosterone follows a daily rhythm closely linked to sleep patternsRegular sleep disruption may shift the hormonal environment sperm develop inAlcohol can impair sleep quality, which may indirectly affect sperm healthConsistent sleep patterns and adequate sleep duration help support reproductive healthSleep is rarely the only factor affecting fertility. But across the weeks when sperm are developing, it quietly shapes the hormonal environment those cells are exposed to.Practical strategies discussed:Keep sleep timing relatively consistent from night to nightAim for around 7–8 hours of sleep per nightProtect the later part of the night when deeper and REM sleep occurBe mindful of habits that repeatedly disrupt sleep, such as late-night alcohol or heavy screen useFocus on patterns across weeks rather than worrying about occasional poor sleepWho this episode is for:Men planning pregnancy or supporting a partnerMen preparing for fertility testing or IVFPartners looking for clear, realistic guidanceClinicians seeking aligned, referral-safe education for patientsWhat’s next:In the next episode we begin exploring the clinical side of fertility — when men should actually get tested and how to make sense of semen analysis results.DisclaimerThis podcast is for general education only and does not replace personalised medical or nutrition advice.If you are trying to conceive or undergoing fertility treatment, discuss your individual situation with your healthcare team.

Supplements are widely used in men’s fertility, but they’re often approached as a shortcut rather than a tool. In this episode, Alex explains where supplements actually fit, why results can be inconsistent, and how clinicians think about supplementation as part of a broader strategy that starts with food, lifestyle, and comprehensive assessment. The focus is on context, safety, and targeted use, not generic protocols.Why supplements are often misunderstood in men’s fertilityWhy motivated men start supplements early, and why that can inflate expectationsWhy “food first” is a sequencing decision, not an anti-supplement stanceThe three questions clinicians use to decide whether supplements belong (gap, mechanism, context)Why these decisions shouldn’t be guesswork, and the role of nutrition assessmentDose, timing, and duration, and why stacking can quietly lead to excessWhy the evidence can look mixed, and what study limitations mean in practiceA simple supplement audit you can do today to check overlap and dose creepWhy targeted supplementation tends to make more sense than blanket approachesSupplements are tools, not solutions. They tend to work best when used selectively, for a clear reason, on top of solid foundations.In the next episode, we’ll look at alcohol and sperm health, including what the evidence actually says and what changes are worth making.This podcast is for general education only and is not a substitute for individual medical advice. Always speak with your healthcare team about your specific situation.

Men’s fertility is often discussed in simplified, reassuring ways that don’t tell the full story. In this episode, Alex breaks down the most common misconceptions that can quietly undermine fertility outcomes, even when men feel they’re doing everything right.This episode focuses on understanding risk, timing, and preparation, not blame or guarantees.In this episode, we cover:Why fertility is often framed as pass/fail, and why thatcauses problemsWhy “normal” semen results don’t always mean optimalpreparationHow male fertility changes with age, and why riskaccumulates quietly over timeWhy lifestyle factors matter earlier than most men realiseWhy IVF and ICSI don’t remove the importance of spermqualityThe difference between control and certainty in men’sfertilityKey takeawayMen don’t control fertility outcomes, but they do influence risk. Understanding that distinction is the foundation for better timing, preparation, and decision-making.What’s nextIn upcoming episodes, we’ll start unpacking what actually helps, what matters when, and how men can approach fertility in a more proactive, informed way.DisclaimerThis podcast is for general education only and is not a substitute for individual medical advice. Always speak with your healthcare team about your specific situation.

The Men’s Fertility Nutrition Podcast delivers clear, evidence-based conversations to help make sense of male fertility.Hosted by Alex Hardy, Men’s Fertility Dietitian, the show explores how nutrition and lifestyle influence sperm health, fertility outcomes, and preparation for pregnancy and fertility treatment.Men’s fertility matters — not just for conception, but for embryo development, miscarriage risk, and the long-term health of future children.If you’re planning ahead, going through treatment, or simply want clarity on what actually helps, this podcast is for you.