How to Improve Sperm Health: What Actually Helps Male Fertility?

Trying to improve sperm quality before conception or IVF? Start with what actually matters. Here’s what sperm tests tell you, which lifestyle factors may help, what supplements can’t promise, and when male fertility deserves proper investigation.

How to Improve Sperm Health: What Actually Helps Male Fertility?

Male fertility has an image problem.

When a couple struggles to conceive, an extraordinary amount of attention tends to land on her.

Her cycle.

Her hormones.

Her eggs.

Her diet.

Her supplements.

Her age.

Meanwhile he is sometimes given a semen analysis, told that the numbers are “fine enough”, and quietly disappears from the fertility conversation.

That makes very little biological sense.

The sperm provides half of the genetic material that creates an embryo.

So whether you're trying naturally, preparing for IVF or trying to understand why previous treatment didn't go as expected, male fertility deserves proper attention too.

But that does not mean buying the biggest collection of male-fertility supplements you can find.

The better question is:

What actually affects sperm health — and what should you do if something isn't right?

What does “healthy sperm” actually mean?

People often talk about sperm quality as though there is one score.

There isn't.

A semen analysis looks at several different features.

These can include:

Sperm concentration and total sperm number

How many sperm are present in the sample.

Motility

How many sperm are moving and how they are moving.

Morphology

The proportion of sperm meeting laboratory criteria for normal shape.

Semen volume

How much seminal fluid is produced.

Laboratories may also assess other characteristics depending on the test and circumstances.

And this is important:

One semen-analysis number does not divide men neatly into “fertile” and “infertile”.

The AUA/ASRM male-infertility guideline specifically notes that individual semen parameters above or below reference limits do not, on their own, reliably predict fertility or infertility.

Semen results also vary naturally from sample to sample. integration.asrm.org

So if one result is abnormal, the useful response is not necessarily panic.

It is interpretation.

If sperm health matters, test it rather than guessing

If you're struggling to conceive, don't try to infer sperm health from:

• libido

• erectile function

• ejaculation

• how “healthy” somebody looks

• whether he already has children

• whether he exercises

• whether he takes supplements

A man can feel completely well and still have abnormal semen parameters.

And a semen result that falls outside a reference range still needs interpretation in context.

Current AUA/ASRM guidance recommends that the male partner is assessed alongside the female partner during an infertility evaluation, including a reproductive history and one or more semen analyses. Men with abnormal semen parameters or suspected male infertility should receive appropriate male-reproductive evaluation. auanet.org

This shouldn't be an afterthought.

Why sperm health matters during IVF too

Sometimes couples assume that once they are doing IVF — particularly ICSI — sperm quality becomes much less relevant.

ICSI can overcome some fertilisation barriers by injecting a sperm directly into an egg.

That is extremely useful.

But it does not mean the male side of the fertility picture should automatically disappear from consideration.

In fact, the updated AUA/ASRM guidance specifically says that the male partner should be evaluated in couples with failed assisted-reproduction cycles or recurrent pregnancy losses. auanet.org

That doesn't mean every failed IVF cycle was caused by sperm.

It means:

“We've already done IVF” is not a reason to stop asking appropriate male-factor questions.

How long does it take to improve sperm health?

This is one of the places where fertility advice often becomes too simplistic.

You'll commonly hear:

“Sperm takes three months to regenerate.”

That is a useful practical approximation.

Sperm production and maturation happens over a period of weeks, which is why changes made today won't necessarily be reflected in tomorrow's semen analysis.

Clinical patient guidance commonly uses around three months as the practical window before reassessing the effect of lifestyle changes. yourfertility.org.au

But don't turn that into another fertility law.

It does not mean:

“Do these seven things for exactly 90 days and your sperm will be fixed.”

Some causes of abnormal sperm are potentially modifiable.

Others need medical treatment.

Some may not be reversible.

And semen parameters naturally vary.

The three-month idea is a useful biological timeframe.

It isn't a guarantee.

So what can actually affect sperm health?

There are lifestyle factors worth paying attention to.

But the evidence is not equally strong for every fertility claim you will see online.

The current AUA/ASRM guideline explicitly notes that evidence around many lifestyle, medication, occupational and environmental risk factors remains limited. auanet.org

That is why I would prioritise the clearer, higher-value issues before worrying about tiny theoretical exposures.

1. Smoking

This belongs high on the list.

Smoking has been associated with poorer semen parameters, including effects on sperm concentration, movement and morphology.

If you're trying for a baby, stopping smoking makes sense for far more than fertility alone.

But don't turn this into:

“Smoking caused our infertility.”

An association at population level cannot tell us exactly why one particular couple is struggling.

2. Testosterone and anabolic steroids

This one deserves a large warning sign because it is so counterintuitive.

A man can take testosterone because he wants:

• better energy

• more muscle

• improved libido

• higher testosterone levels

and inadvertently damage sperm production.

External testosterone can suppress the hormonal signalling required for the testes to make sperm.

Anabolic steroid use can do the same.

The AUA/ASRM guideline identifies anabolic steroids as a clear risk to spermatogenesis. integration.asrm.org

If you take prescribed testosterone, do not simply stop it yourself.

Speak to the prescribing clinician and tell them you are trying to conceive.

But if fertility matters, testosterone use absolutely belongs in the conversation.

3. Recreational drugs

Recreational drug use should also be discussed honestly during fertility assessment.

Cannabis and other drugs have been investigated in relation to sperm parameters, although the strength of evidence varies between exposures.

The sensible principle is not:

“One exposure destroyed your sperm.”

It is:

If you're actively trying to conceive, avoid unnecessary reproductive risk where you reasonably can.

4. Alcohol

The relationship between alcohol and male fertility is not as simple as:

one drink = damaged sperm.

Heavy alcohol consumption is the clearer concern.

If intake is high, reducing it is sensible for general health and potentially reproductive health.

I would not build male-fertility preparation around obsessing over whether one beer ruined a sperm cycle.

Look at the meaningful pattern.

5. Weight and metabolic health

Body weight gets discussed terribly in fertility.

It is either ignored completely or turned into:

“Lose weight and you'll get pregnant.”

Neither is helpful.

Obesity has been associated with altered reproductive hormones and poorer semen parameters in some studies.

But weight itself is not a complete explanation of fertility.

If there are wider metabolic issues — for example diabetes, insulin resistance, poor cardiovascular health or significant obesity — those deserve appropriate medical attention anyway.

The objective is better health, not crash dieting for sperm.

6. Diet

This is where the internet starts inventing “sperm superfoods”.

You do not need one.

The evidence around diet and male fertility is imperfect, but broadly, eating a varied and nutritionally adequate diet is a far more defensible recommendation than chasing individual fertility foods.

AUA/ASRM describes the diet evidence as relatively low quality, although research tends to favour diets with more fruits and vegetables and less high-fat/processed-food emphasis. integration.asrm.org

So think:

proper meals

rather than:

Which berry makes sperm swim faster?

A useful everyday plate usually gets you further than a fertility-food scavenger hunt.

7. Heat

The testes sit outside the body for a reason.

Sperm production works best below core body temperature.

Repeated substantial heat exposure — for example frequent hot tubs or occupational heat — may therefore deserve attention when trying to conceive.

But again, keep perspective.

You do not need to become frightened of trousers, sitting down or ever having a warm bath.

We are looking for meaningful, repeated exposures — not building another list of things a man is forbidden to do.

8. Sleep, exercise and general health

Poor sleep, inactivity and chronic health problems all sit within the wider reproductive-health picture.

That does not mean there is a magic:

8 hours sleep + 30 minutes exercise = improved sperm count

formula.

It means sperm is produced by a whole human being.

If that human being is chronically sleep-deprived, metabolically unwell, smoking heavily and barely eating anything except takeaway, the answer probably isn't another antioxidant capsule.

Start with the fundamentals.

What about stress and sperm?

Stress is another area where association can rapidly become blame.

Severe or chronic stress may affect hormones, sexual function, sleep, relationships and health behaviours.

Those things can all matter.

But I would never tell a man:

“Your stress caused your poor sperm.”

Nor would I tell a couple that infertility will resolve if he meditates harder.

Support stress because living through fertility treatment is hard.

Don't weaponise it as another fertility failure.

Can supplements improve sperm quality?

Possibly in some circumstances.

But the supplement story is much less certain than fertility marketing often makes it sound.

Antioxidants including CoQ10, carnitine, selenium, zinc and vitamins have all been studied in male fertility.

Some studies report improvements in individual semen parameters.

That is not the same thing as proving that every man taking an antioxidant fertility stack is more likely to take home a baby.

Major clinical guidance remains cautious because the evidence for many supplement interventions is inconsistent or limited.

NHS guidance similarly notes that evidence for over-the-counter supplements to improve sperm is limited. myhealth-devon.nhs.uk

So before starting another supplement, ask:

What are we trying to improve?

Do we know this is a problem?

Is there evidence this supplement changes an outcome that matters?

Is he already getting the same nutrients elsewhere?

Could the dose be excessive?

Does his clinician know he's taking it?

More is not automatically more fertile.

Please don't treat a semen analysis like a supplement shopping list

This is an important distinction.

If motility is low, the automatic answer should not be:

“Which supplement improves motility?”

If count is low:

“Which tablet increases sperm count?”

If morphology is low:

“Which antioxidant fixes morphology?”

The useful question is:

Why might this parameter be abnormal?

Sometimes an underlying problem can be identified.

That may include:

• hormonal issues

• varicocele

• infection

• obstruction

• genetic factors

• medication effects

• testicular problems

• previous illness or treatment

• lifestyle exposures

And sometimes no clear cause is found.

But you don't want to supplement your way around something that actually deserved medical investigation.

One semen result isn't necessarily the whole picture

Semen parameters can vary considerably between ejaculates.

That is why abnormal results are often repeated before major conclusions are drawn.

The AUA/ASRM guideline notes that at least two semen analyses can be particularly useful when the first result is abnormal. integration.asrm.org

So if somebody has one disappointing result, don't immediately conclude:

“His sperm is bad.”

You have information.

Now it needs context.

What if sperm count is very low — or there are no sperm?

This is where Googling “how to increase sperm naturally” can waste valuable time.

Severely abnormal sperm parameters and azoospermia — no sperm detected in the ejaculate — need proper medical evaluation.

Lifestyle support may still matter for general health.

But broccoli, cold showers and supplements are not a substitute for investigating why sperm production or delivery is severely impaired.

University Hospitals Birmingham's NHS guidance makes this distinction explicitly: its general sperm-quality lifestyle advice is not intended to replace specialist assessment for men with azoospermia or severely abnormal semen results. uhb.nhs.uk

That is an important boundary.

Male infertility can occasionally flag wider health problems

This is another reason not to treat sperm as only a baby-making issue.

Male infertility can sometimes be associated with broader health conditions.

The male-infertility guideline therefore recommends appropriate medical evaluation partly because it can identify health issues beyond reproduction. integration.asrm.org

So an abnormal semen analysis deserves more than:

“Take this fertility vitamin and come back in three months.”

Sometimes it deserves a proper look at the man who produced the sample.

Preparing sperm for IVF or ICSI

If IVF is coming up, there are two jobs happening at the same time.

Your clinic is responsible for the medical treatment.

Your job is not to engineer laboratory-perfect sperm at home.

But the months before treatment are a reasonable time to:

• deal with smoking

• avoid anabolic steroids and unnecessary testosterone exposure

• review medications with the appropriate clinician

• reduce heavy alcohol consumption

• eat adequately

• address significant health problems

• avoid repeated excessive heat exposure

• obtain proper investigation if semen results are abnormal

• stop making fertility preparation entirely her responsibility

That last one matters.

IVF preparation is a couple problem, even when she is the one taking almost all of the medication.

After failed IVF, should male fertility be reviewed?

Potentially, yes.

Not because failed IVF automatically means sperm was responsible.

But because male-factor evaluation should not stop simply because IVF has already taken place.

The current AUA/ASRM guideline recommends male evaluation in couples who have experienced failed assisted-reproduction cycles. auanet.org

So if you've just been through unsuccessful IVF, it is reasonable to ask:

Was the male side reviewed appropriately?

Not:

“It must have been his sperm.”

Those are very different questions.

Failed IVF: What Should You Do Before Trying Again?

What I would prioritise if you want to improve sperm health

Don't start with 14 supplements.

Start here:

1. Get the right information

If fertility is already a concern, get a semen analysis rather than guessing.

2. Investigate genuinely abnormal results

Particularly severe or persistent abnormalities deserve clinical evaluation.

3. Remove obvious reproductive risks

Smoking, anabolic steroids, recreational drugs, heavy alcohol and repeated excessive heat exposure are much higher-yield places to start than fertility hacks.

4. Sort the foundations

Food, exercise, metabolic health and sleep matter for the human being producing the sperm.

5. Give changes enough time

Think in months, not days.

6. Don't let supplements become the whole strategy

They may have a role.

They are not a substitute for diagnosis.

IVF isn't only her preparation

This is the part I want couples to take away.

She may be:

injecting herself,

attending scans,

watching follicles,

having egg retrieval,

taking progesterone,

going through transfer,

and carrying the pregnancy.

That doesn't mean the biological preparation is exclusively hers.

Sperm matters before natural conception.

It matters before IVF.

And when there has been previous failed treatment, the male side still deserves appropriate review.

Fertility preparation should reflect both halves of the embryo.

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Frequently Asked Questions About Sperm Health

How can I improve sperm health naturally?

Start with the higher-value factors: stop smoking, avoid anabolic steroids and recreational drugs, limit heavy alcohol use, eat a balanced diet, exercise appropriately, address significant weight or metabolic-health issues and avoid repeated excessive testicular heat. If fertility is already a concern, get a semen analysis rather than relying on lifestyle changes alone.

How long does it take to improve sperm quality?

Sperm production and maturation take several weeks, so around three months is commonly used as a practical timeframe before assessing whether lifestyle changes have affected semen parameters. That does not guarantee that every sperm problem will improve within three months. yourfertility.org.au

What makes sperm healthy?

Semen analysis usually considers factors including sperm concentration or total number, motility and morphology, along with semen volume and other characteristics. No single semen parameter can perfectly predict whether a couple will conceive. integration.asrm.org

Can sperm quality be improved for IVF?

Some modifiable factors may improve semen parameters in some men, particularly where lifestyle or health issues are relevant. But the right approach depends on the cause of any abnormal result. Severe or persistent abnormalities need appropriate medical investigation rather than relying on lifestyle changes or supplements alone.

Which supplements improve sperm quality?

Several antioxidants and nutrients have been studied, but evidence is inconsistent and improvement in a semen-analysis number does not automatically mean a higher live-birth rate. Supplements should be considered in the context of the individual's diet, test results, medical history and other supplements or medication.

Does testosterone improve male fertility?

No. External testosterone can suppress sperm production and may substantially reduce sperm count. Men using prescribed testosterone who want to conceive should discuss fertility with their clinician rather than stopping treatment independently. integration.asrm.org

Does sperm health matter for IVF and ICSI?

Yes. IVF and ICSI can overcome some fertility barriers, but they do not make male reproductive health irrelevant. Current male-infertility guidance recommends evaluating the male partner as part of fertility assessment and after failed assisted-reproduction cycles where appropriate. auanet.org

Evidence behind this article

This article has been informed by the AUA/ASRM Guideline on Diagnosis and Treatment of Infertility in Men, amended in 2024. It recommends concurrent assessment of male and female partners during infertility evaluation, semen analysis as part of initial male assessment, specialist evaluation where semen parameters are abnormal, and male evaluation following failed assisted-reproduction cycles. auanet.org

It also draws on current NHS patient guidance on semen quality and evidence-aware lifestyle measures. uhb.nhs.uk

Last reviewed: October 2026

This article provides general education and does not replace assessment or treatment from a GP, fertility clinic, urologist, andrologist or other clinician who knows your medical history.

About Karen Botha

Karen Botha is a root cause fertility health practitioner who helps couples identify the deeper health pressures that may be affecting conception by combining Western Scientific data with Eastern wisdom. Her work combines training in nutritional health, anatomy and physiology, counselling skills, and pre and postnatal care with a structured whole-body approach to fertility support. Karen is the creator of the Fertility Bandwidth model, designed to help couples understand what may be competing with the body’s ability to reproduce. Her content is provided for educational and informational purposes only and is not a substitute for medical advice, diagnosis, or treatment. Fertility Bandwidth is not an IVF clinic and does not conduct sperm samples - she helps you understand what those tests mean, and what you can do to improve the results.