Male fertility can shift with everyday habits, but there’s no single food or garment that guarantees conception. If you’re working out how to improve male fertility naturally, start with a health check, then focus on five areas you can change over time.
We pulled a meta-analysis of 57 studies covering more than 29,000 men on smoking and semen quality. It found smoking lowered sperm density, total count, and motility across every semen parameter measured. A separate meta-analysis of 14 studies on 9,779 men found obese men had a 42% higher risk of low sperm count than normal-weight men. Australian national fertility data show 1 in 6 couples take over 12 months to conceive, a stake worth checking with a GP early.
Start with a fertility check and a realistic timeline
A sensible first move is to check your health, not guess from symptoms. A semen analysis can assess sperm count and movement, but a result alone can’t confirm whether you can or can’t conceive.
Book a GP appointment if you have concerns, a history of testicular or reproductive issues, or take medicine that may affect sperm. Bring a list of medicines and supplements, plus notes about past illness, surgery, smoking, alcohol, and workplace exposures. Don’t stop prescribed medicine on your own.
In Australia, a fertility assessment is generally recommended after 12 months of regular, unprotected sex without conception. Evaluation may be appropriate sooner when there are risk factors or concerns. Both partners should be assessed, rather than assuming the issue sits with one person.
A semen analysis is the key test. Results can vary, so an abnormal result may need repeating. Your clinician can explain how to prepare and whether you need blood tests or a specialist referral. Avoid trying to interpret one number without medical advice.
Timing matters because sperm take about three months to develop. A useful next read is our men’s fertility support guide, which covers other habits worth reviewing.
Fertility concerns can weigh on a couple. Talk openly, agree on the next step, and seek support if the process is causing stress. You don’t need to wait a full year if your doctor advises an earlier check.
Build meals around whole foods and address nutrient gaps
For natural fertility support, begin with the food you eat most days. A Mediterranean-style pattern centres on vegetables, fruit, whole grains, legumes, fish, and olive oil, with less red and highly processed meat.
That doesn’t mean you need a perfect menu. Add vegetables to a meal you already like. Swap some processed snacks for fruit or nuts. Use beans or lentils in a dish that would usually rely on processed meat. Small changes are easier to keep doing than a strict plan you abandon next week.
A Mediterranean-style diet is linked to improved fertility. You can read more about food and fertility. It supports treating food as part of overall health, not as a fertility cure.
Foods containing zinc and selenium can fit into a balanced diet. Beans, meat, seafood, eggs, and nuts are options, alongside leafy greens and fruit for other nutrients. The aim is variety across meals, not a single “fertility food.” Walnuts can be an easy snack, but don’t assume one food will change a semen result.
Supplements need more care. Some research on specific nutrients is promising, but supplements aren’t a substitute for sound eating or a medical assessment. Labels may not tell the whole story about what’s in a product. Ask a GP or pharmacist before starting one, especially if you take medicine or have a health condition.
Vitamin D supplements may help men who are deficient, but that doesn’t mean everyone should take them. Ask a clinician whether testing makes sense before you buy a bottle. Get food and supplement advice that fits your health rather than following a high-dose plan from social media.
Water is the straightforward drink choice through the day. Keep a bottle nearby at work or in the car, then drink when thirsty and more when you’re active or it’s hot. Hydration supports general health, but don’t treat extra water as a proven way to raise fertility.
Work toward a healthy weight and stay active
Weight and movement are useful parts of a fertility plan. Being overweight can affect sperm quality, while being underweight can also be a health concern. If you’re unsure what a healthy target looks like for you, ask your GP rather than chasing a number from a fitness app.
If weight loss is appropriate, make it steady. Choose meals that keep you satisfied and add movement you can sustain, such as a brisk walk, swimming, or cycling. A GP or Accredited Practising Dietitian can help set a plan if you have a health condition or have struggled with weight changes before.
Losing weight when overweight or obese can improve total sperm count and quality. The point isn’t to crash diet. A restrictive plan can be hard to maintain and isn’t a safe fit for everyone.
Regular moderate activity can support weight management and general health. Build it into your week in a way that works with your job and current fitness. If you’ve been inactive, start with shorter sessions and increase as your body adjusts. You don’t need punishing workouts to make a useful change.
More training isn’t always better. Very intense exercise or long endurance sessions may affect reproductive health for some men. Pay attention to recovery, sleep, and how you feel. If training leaves you exhausted or injured, ease back and get medical advice rather than pushing through.
Stress deserves attention too. Ongoing stress can affect wellbeing and sexual function, and it can make conception feel like another job. Protect some time for a walk, a hobby, or a calm conversation with your partner. If stress or low mood is persistent, speak with a health professional.
For specific food and movement ideas, see our guide to improving sperm health. Use it as a prompt for questions, not a replacement for tailored care.
Reduce smoking, alcohol, and other avoidable exposures
When you’re trying to improve male fertility naturally, reducing exposures is often more useful than adding another supplement. Smoking is linked with lower sperm count, semen volume, and sperm movement. Quitting is a strong step for your health, even if it takes more than one attempt.
If you smoke, make a quit plan with your GP. Ask what support suits you and set a start date you can follow through on. Smoke can affect your partner too, so make home and shared spaces smoke-free. Vaping and recreational drugs are also worth discussing with a clinician when conception is a goal.
Alcohol can affect semen quality when intake is heavy or daily. Cutting back is a reasonable change while trying to conceive. Choose alcohol-free days and notice the situations that lead you to drink more than planned. If reducing feels difficult, ask your GP for help without waiting until it becomes a crisis.
Some medicines and drugs can affect sperm. Anabolic steroids are a particular concern, and some prescription medicines may also play a part. Don’t stop treatment abruptly. Tell your prescriber that you’re trying to conceive and ask whether there’s a safe alternative or a need to monitor your health.
Work and home exposures matter as well. If you handle pesticides, herbicides, solvents, or heavy metals, follow workplace safety steps and use the protective gear provided. At home, follow product labels and keep chemicals stored safely. You don’t need to fear every household item; focus on exposures you can reasonably limit.
For more information about smoking and fertility, see the Australian men’s health information on smoking and fertility and ask a doctor for quitting support.
Sleep and hydration support your wider health, but they aren’t quick fertility fixes. Keep a steady sleep routine where you can. If shift work, anxiety, or a health issue is disrupting sleep, bring it up at your next appointment.
Choose comfortable, breathable underwear without expecting a fertility fix
Underwear is an everyday choice, so comfort matters. It’s reasonable to choose a fit that doesn’t pinch or trap sweat. But the evidence doesn’t show that changing underwear alone will make you fertile or treat a sperm problem.
Research on heat and male fertility is mixed. Keep in mind that a comfortable garment is not medical treatment.
If your current pair rides up, chafes, or feels too tight, try a different cut or fabric and see how it feels through a full day. SLY Collective Underwear makes bamboo pouch underwear with an anatomical hammock design, anti-chafe details, longer legs, and a pocket. Those are comfort and fit features, not proof of improved fertility.
SLY Collective’s Bamboo Hammock Pouch design is intended to give the scrotum support and room, with breathable bamboo fabric. We’re comfortable recommending a fit that feels good for daily wear. It doesn’t replace a semen analysis.
Also think about heat beyond underwear. Avoid making frequent hot tubs part of your routine while trying to conceive. Don’t rest a warm laptop directly on your lap for long stretches. Take movement breaks during a desk day, especially if sitting leaves you uncomfortable.
During sex, some common lubricants may reduce sperm movement. If you need lubricant while trying to conceive, ask a pharmacist or clinician about a fertility-friendly option. And don’t turn the ovulation window into a daily performance test. A clinician can help if timing is causing strain.
Good underwear should fit your body, not make a promise about your sperm. Our guide to sperm count and daily habits has more detail on the lifestyle side.
Make one change, then check in
Start with a GP appointment if you have concerns or have been trying without success. Then choose one habit you can keep for the next three months, such as quitting smoking or changing your usual meals. If comfortable underwear is part of that routine, explore SLY Collective for a fit built around support and breathability.
Frequently Asked Questions
How long does it take to improve male fertility naturally?
Changes may take about three months to show in newly developed sperm. Making health changes well before trying to conceive may be helpful. The timeline varies, and lifestyle changes can’t correct every cause of infertility. If you have concerns, arrange a medical check rather than waiting for habits alone to solve the problem.
Can underwear improve sperm count?
Underwear alone won’t fix a sperm count problem, and no style treats infertility. A breathable pouch that keeps things cooler is a sensible everyday choice. Choose a pair that fits without pinching or chafing. If you’re concerned about sperm health, a GP can discuss testing and next steps.
What foods support male fertility?
A balanced pattern with vegetables, fruit, whole grains, legumes, fish, and nuts is a sensible place to start. Some nutrient studies suggest possible benefits, but no single food guarantees better fertility. Build a varied diet first. Ask a GP or dietitian before using supplements, especially if you take medicine or have a health condition.
When should I see a doctor about fertility?
See a GP if you have fertility concerns, a relevant medical history, or have been trying to conceive for a year without success. Seek advice sooner if your partner is over 35 or a clinician has identified a reason not to wait. A semen analysis can help guide the assessment. If you want a better everyday fit, explore SLY Collective.