The Men's Fertility Nutrition Podcast

Axis Dietetics
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Fertility is often framed as a women’s issue. But male factors contribute to around half of all fertility challenges. The Men’s Fertility Nutrition Podcast explores what influences sperm health, male fertility, and reproductive outcomes — and what men can realistically do to support them. Hosted by Accredited Practising Dietitian Alex Hardy, each episode breaks down evidence-based nutrition, lifestyle, and fertility science into clear, practical guidance for men trying to conceive or preparing for IVF and ICSI.

  1. Omega-3 for Sperm Health: Food vs Fish Oil Supplements

    Jun 23

    Omega-3 for Sperm Health: Food vs Fish Oil Supplements

    Episode Summary:In this episode, Men’s Fertility Dietitian Alex Hardy explores one of the most commonly discussed nutrients in male fertility nutrition — omega-3. We break down why omega-3 gained so much attention in sperm health research, what the evidence actually shows, and why the conversation is often more nuanced than supplement marketing suggests. The episode explores both food-based and supplement-based approaches, including the role of oily fish, walnuts, and Mediterranean-style dietary patterns, as well as the limitations of the current research on fish oil supplementation and fertility outcomes. What You’ll Learn: Why omega-3 became a focus in male fertility researchThe role of DHA and sperm membrane functionWhat food-based studies have shownWhat omega-3 supplement trials actually foundWhy semen parameter improvements do not always translate to pregnancy outcomesThe difference between food-first nutrition and targeted supplementationWhen omega-3 supplements may be worth consideringKey Takeaways: Sperm membranes are naturally rich in omega-3 fatty acids, particularly DHASome studies suggest omega-3 may support sperm motility and morphologyEvidence across studies remains mixed and inconsistentImprovements in semen parameters do not necessarily mean improved pregnancy or live birth outcomesWhole-food dietary patterns likely matter more than any single supplementSupplements may still have a role in selected situations, particularly when dietary intake is poorPractical Tips: Include oily fish such as salmon, sardines, trout, or mackerel regularlyAdd plant omega-3 sources like walnuts, chia seeds, and flaxseedsFocus on overall dietary quality rather than isolated nutrientsThink of supplements as targeted tools, not automatic solutionsPrioritise sustainable dietary patterns over short-term fixes Related Resources:Website: www.axisDietetics.com.auRead the full blog article: https://www.axisdietetics.com/omega-3-for-sperm-health-food-vs-supplements-what-actually-mattersInstagram: @axisdietetics Disclaimer:This podcast is for general information and education only and is not a substitute for personalised medical, nutrition, or healthcare advice. Please speak with your doctor or qualified healthcare professional regarding your individual situation. Next Episode:Weight Loss and Male Fertility — When It Helps, When It Hurts

    8 min
  2. Fertility Diet for Men: What to Eat to Improve Sperm Health

    Jun 9

    Fertility Diet for Men: What to Eat to Improve Sperm Health

    Episode Summary:Nutrition advice for male fertility often focuses on supplements, superfoods, or extreme diet changes. But what does a fertility-supportive diet actually look like across a normal day? In this episode, Men’s Fertility Dietitian Alex Hardy breaks down the practical foundations of a diet that may help support sperm health over time. Rather than chasing perfection, the focus is on building a consistent dietary pattern that supports the environment sperm develop within across the 12 week sperm development window. We explore the common pattern many men fall into — where one decent dinner is trying to compensate for a fairly average day of eating — and what tends to work better in practice. What You’ll Learn: Why overall dietary structure matters more than individual “fertility foods”Common eating patterns that may undermine sperm health over timeWhy consistency matters more than perfectionPractical examples of balanced breakfasts, lunches, dinners, snacks, and drinksThe role of protein, fibre-rich carbohydrates, healthy fats, and less processed foodsWhy one healthy meal usually isn’t enough to offset a poor overall patternHow realistic dietary habits may help support the environment sperm develop withinKey Takeaways: Fertility-supportive nutrition is usually built around consistent dietary patterns, not single foodsMany men rely too heavily on dinner to carry the nutritional quality of the dayProtein, plant foods, and overall diet quality tend to work best when distributed more consistently across the dayWater, less processed foods, and practical meal structure often matter more than perfection or complexityNutrition may help support sperm health, but it does not guarantee fertility outcomes Practical Tips: Build more nutrition into the first half of the day, not just dinnerCreate a small rotation of balanced meals that are realistic to repeat consistently Reduce reliance on takeaway, sugary drinks, alcohol, and highly processed convenience foods becoming daily defaultsLinks:Website: www.axisdietetics.comBlog Article: https://www.axisdietetics.com/fertility-diet-for-men-what-to-eat-to-support-sperm-healthInstagram: @axisdietetics Disclaimer: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.

    7 min
  3. Zinc for Male Fertility: Does It Actually Improve Sperm Quality?

    May 25

    Zinc for Male Fertility: Does It Actually Improve Sperm Quality?

    Episode Summary Zinc is one of the most common ingredients in male fertility supplements. But more zinc does not automatically mean better sperm. In this episode, Alex explores why zinc matters for male reproductive health, where it genuinely plays a role, and why the evidence for routine supplementation is less convincing than many people assume. You’ll learn how zinc contributes to sperm production, antioxidant defence, and DNA processes, along with the difference between correcting a deficiency and supplementing an already adequate system. The episode also explains why testing zinc status has limitations, and why broader diet quality often matters more than chasing one nutrient. What You’ll Learn Why zinc is important for sperm productionHow zinc supports reproductive biologyWhat observational studies have shownWhat higher-quality trials found about supplementationWhy correcting deficiency differs from taking more “just in case”Why zinc blood tests have limitationsHow zinc fits into a food-first fertility approachKey Takeaways Zinc is essential for normal sperm productionLow zinc intake or status may contribute to poorer sperm healthCorrecting deficiency may help, but extra zinc is not a reliable fertility boosterLarge trials have not shown consistent improvements in semen parameters or fertility outcomesZinc works within a broader nutritional system, not in isolationFood quality and adequate overall intake remain the priorityWho This Episode Is For Men taking fertility supplements containing zincMen wondering whether they should supplement zincCouples preparing for conceptionAnyone wanting a realistic evidence-based take on nutrients for sperm healthWhat’s Next Next episode: Fertility Diet for Men — what a practical, sperm-supportive eating pattern actually looks like day to day. Disclaimer This podcast is for general education only and does not replace personalised medical or nutrition advice. Please discuss your own circumstances with a qualified healthcare professional. Links www.axisdietetics.com

    7 min
  4. Not All Evidence Is Equal: How to Think About Fertility Nutrition (And What to Trust)

    May 12

    Not All Evidence Is Equal: How to Think About Fertility Nutrition (And What to Trust)

    Episode Summary A 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 Learn Why 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 Takeaways Evidence-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 Discussed Population — 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 Matters Men 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 Next Next episode: Zinc for Male Fertility — where the evidence is stronger, where it is weaker, and how to think about supplementation in practice. Disclaimer This 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

    8 min
  5. Coenzyme Q10 (CoQ10) for Sperm Health: What the Evidence Actually Shows

    May 5

    Coenzyme Q10 (CoQ10) for Sperm Health: What the Evidence Actually Shows

    CoQ10 is one of the most studied supplements in male fertility. The signal is stronger than many others, but it is not straightforward. In this episode, Alex breaks down what CoQ10 actually does, why it is often recommended for sperm health, and what the research really shows. You’ll learn how CoQ10 supports mitochondrial energy production, why that matters for sperm motility, and where the evidence appears strongest. The episode also explores the limits of the research, including why improvements in semen parameters do not always translate into pregnancy or live birth outcomes. This is a practical, balanced look at where CoQ10 may fit into a broader fertility plan. What You’ll Learn What CoQ10 is and how it works in the bodyWhy sperm require high energy production to functionWhy CoQ10 is often linked with sperm motilityWhat studies suggest about count, motility, and morphologyWhy stronger semen parameters do not always equal better fertility outcomesHow to think about CoQ10 in context rather than as a shortcutKey Takeaways CoQ10 plays a central role in cellular energy productionThe strongest research signal appears to be sperm motilitySome studies suggest benefits for other parameters, but findings are less consistentEvidence for pregnancy or live birth outcomes remains limitedCoQ10 may be useful in selected contexts, but it does not replace foundations like diet, sleep, alcohol reduction, and metabolic healthWho This Episode Is For Men with reduced motility on semen analysisCouples preparing for conception or IVFMen considering supplements and wanting an evidence-based viewAnyone trying to understand where CoQ10 fits in practiceWhat’s Next Next episode: Not All Evidence Is Equal — how to think about fertility nutrition research, conflicting studies, and what to trust. Disclaimer This podcast is for general education only and does not replace personalised medical or nutrition advice. Please speak with your healthcare team about your individual situation. Links: www.axisdietetics.com

    9 min
  6. Antioxidants and Male Fertility: Do They Actually Improve Outcomes?

    Apr 28

    Antioxidants and Male Fertility: Do They Actually Improve Outcomes?

    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 Learn What 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 Takeaways Antioxidants 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 solutions Episode Outline Oxidative 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 clinically Practical Considerations Focus 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 point What’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. Links Website: www.axisdietetics.com Instagram: @axisdietetics If 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.

    8 min
  7. What Is Sperm DNA Fragmentation? Does It Affect Fertility and Pregnancy Outcomes?

    Apr 21

    What Is Sperm DNA Fragmentation? Does It Affect Fertility and Pregnancy Outcomes?

    Episode SummaryA semen analysis can look acceptable on paper — but that doesn’t always mean sperm DNA is in good shape. In this episode, Men’s Fertility Dietitian Alex Hardy explains sperm DNA fragmentation — a deeper layer of sperm quality that isn’t captured by standard semen analysis. We explore what DNA fragmentation actually is, why it matters for fertility and pregnancy outcomes, and why it isn’t part of routine testing for most men. The episode also breaks down what drives DNA damage in sperm, when testing may be useful, and how lifestyle, health, and targeted interventions can influence sperm quality over time. Main Topics What sperm DNA fragmentation is and how it differs from standard semen analysisWhy normal semen results don’t always reflect full sperm qualityHow DNA fragmentation relates to fertility, IVF outcomes, and miscarriage riskWhy DNA fragmentation testing isn’t routinely recommendedWhen testing may be useful in clinical practiceThe role of oxidative stress in sperm DNA damageClinical, lifestyle, and metabolic contributorsCan DNA fragmentation be improved? Where supplements may fit — and their limitationsPractical Takeaways Sperm DNA fragmentation helps explain why semen analysis results and outcomes don’t always alignTesting can be useful, but it’s only part of the picture — the focus is on what’s driving it and what can be improvedImproving overall health remains central — including diet quality, body composition where relevant, sleep, and reducing exposures like smoking, alcohol, and heatClinical issues such as varicocele or inflammation should be assessed and managed appropriatelyTargeted supplementation may play a role in some cases, but the evidence is mixed and not outcome-drivenIn situations like unexplained infertility, recurrent pregnancy loss, or failed treatment, more advanced testing may be worth discussing with a clinicianDisclaimer This podcast is for general education only and does not replace individual medical or nutrition adviceIf you’re navigating fertility concerns or treatment, speak with your healthcare team Links Website: axisdietetics.comInstagram: @axisdietetics

    10 min
  8. Understanding Semen Analysis Results: What Count, Motility, and Morphology Actually Mean

    Apr 14

    Understanding Semen Analysis Results: What Count, Motility, and Morphology Actually Mean

    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 Learn What 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 Takeaways Semen 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 Takeaways Avoid 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

    9 min
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Fertility is often framed as a women’s issue. But male factors contribute to around half of all fertility challenges. The Men’s Fertility Nutrition Podcast explores what influences sperm health, male fertility, and reproductive outcomes — and what men can realistically do to support them. Hosted by Accredited Practising Dietitian Alex Hardy, each episode breaks down evidence-based nutrition, lifestyle, and fertility science into clear, practical guidance for men trying to conceive or preparing for IVF and ICSI.

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