The Male Role in Preconception Care

Written By April Woodroffe

THE FACTS

Sperm takes 74 days to fully mature — meaning what you do today directly determines sperm quality at conception.

Male factor infertility contributes to approximately 50% of all fertility challenges — yet preconception care for men is rarely discussed.

The good news — sperm quality responds significantly to lifestyle, nutrition, and targeted support within 3–6 months.

Here is where to start:

1.SELECTIVE SUPPLEMENTATION

Not every man needs everything — but these four have the strongest evidence base for male preconception support:

  • CoQ10 — Improves sperm motility, count, and morphology — reduces DNA fragmentation through mitochondrial energy support

  • Zinc — Essential for testosterone production, sperm development, and DNA integrity — consistently low in men with poor sperm parameters

  • Vitamin D — Directly regulates testosterone production and sperm motility — optimise to above 100 nmol/L for reproductive benefit

  • Withania somnifera (Ashwagandha) — The most evidence based herb for male fertility — improves sperm count, motility, testosterone, and reduces cortisol driven reproductive suppression

Test before you supplement where possible — targeted supplementation based on individual deficiency and clinical picture will always outperform a generic approach

2.REDUCE ALCOHOL

No truly safe threshold has been established for male fertility

Alcohol directly impairs testosterone production through its effect on Leydig cells in the testes — the primary site of testosterone synthesis.

It also increases oestrogen conversion, depletes zinc, impairs liver detoxification of reproductive hormones, and reduces sperm quality across all parameters.

What the research shows: Even moderate intake — 5 or more drinks per week — is associated with reduced sperm concentration, motility, and morphology

The recommendation: Reduce to as little as possible in the 3–6 months prior to conception. The closer to zero the more significant the improvement in sperm parameters.

3.ANTIOXIDANT NUTRITION

Oxidative stress is the primary driver of sperm DNA damage

Sperm DNA fragmentation — damage to the genetic material carried in sperm — is one of the most significant and underdiagnosed contributors to male infertility, miscarriage, and failed IVF cycles.

Priority antioxidant foods:

  • Deeply coloured berries and fruits

  • Leafy greens and cruciferous vegetables

  • Tomatoes — lycopene directly reduces oxidative stress in seminal plasma

  • Brazil nuts — selenium critical for sperm motility and DNA protection

  • Dark chocolate — flavonoids and antioxidant activity

  • Extra virgin olive oil

4.REDUCE STRESS

When stress is chronic the body prioritises survival over reproduction — every time.

Cortisol suppresses the hormonal cascade driving testosterone and sperm production at the source.

What chronic stress does:

  • Suppresses testosterone and LH

  • Increases oxidative damage to sperm DNA

  • Impairs count, motility, and morphology

  • Disrupts sleep — compounding everything above

What helps:

  • Daily movement — even 30 minutes walking reduces cortisol meaningfully

  • Breathwork — box breathing and physiological sigh for acute stress reduction

  • Prioritise sleep — the most impactful cortisol regulating behaviour available

  • Withania somnifera — directly reduces cortisol and supports testosterone simultaneously

  • Reduce the primary stress load — work, financial, relational

5.PRIORITISE SLEEP

The majority of daily testosterone production occurs during sleep — specifically during slow wave and REM sleep stages.

Poor sleep does not just leave you tired — it directly suppresses testosterone production, reduces LH pulsatility, and impairs the hormonal cascade driving sperm development.

What the research shows: Men sleeping less than 6 hours per night show significantly reduced testosterone levels and poorer sperm parameters than those sleeping 7–9 hours

Practical priorities:

  • Consistent sleep and wake times — circadian rhythm directly regulates testosterone

  • Dark, cool room — supports melatonin and growth hormone production overnight

  • Avoid screens one hour before bed

  • Avoid alcohol within three hours of sleep — disrupts sleep architecture and suppresses testosterone recovery overnight

6.REDUCE HEAT AND EMF EXPOSURE

Your testes are outside your body for a reason

Sperm production requires a temperature approximately 2–4 degrees below core body temperature. Even modest and sustained heat exposure directly impairs sperm count and motility.

The most common culprits:

  • Laptop on lap during work

  • Phone(s) in pants pockets

  • Hot baths, spas and saunas

  • Tight underwear and clothing

  • Heated car seats

  • Cycling for extended periods

The fix: Loose fitting underwear, laptop on a desk, phone out of pockets, limit hot baths and saunas, and avoid prolonged heat exposure to the groin in the 3–6 months prior to conception

7.GET TESTED

You cannot optimise what you have not measured.

What to test 3-6 months prior:

  • Semen analysis - count, motility, morphology and DNA fragmentation

  • Free and bound testosterone, LH and FSH

  • Vitamin D

  • Zinc

  • Folate and B12

  • Full blood count, thyroid panel and metabolic markers (fasting insulin etc.)

Why DNA fragmentation matters:

Standard semen analysis does not assess sperm DNA integrity — yet DNA fragmentation is one of the strongest predictors of fertilisation failure, miscarriage, and poor embryo quality. Request it specifically.

Sperm quality is responsive — to what you eat, how you sleep, how you manage stress, what you supplement, and how you live.

74 days.

That is all it takes for a new generation of sperm to mature. Three to six months of intentional support can meaningfully shift the picture before conception.

Start now.

The best time to prepare was three months ago.

The second best time is today.

April Woodroffe
Next

HERB SPOTLIGHT