Maximising Testosterone Naturally

Before considering TRT, there is significant room to optimise testosterone through evidence-based lifestyle interventions.

The Highest-Leverage Factors

Sleep (most important) Testosterone is produced primarily during deep sleep. Less than 7 hours consistently reduces testosterone by 10–15%. Optimise sleep first.

Resistance Training Compound movements (squat, deadlift, bench) 3–4× per week. Heavy loads (85%+ 1RM) drive the most acute testosterone response.

Body Composition Excess body fat (>20%) increases aromatase activity, converting testosterone to estrogen. Each kg of fat lost typically improves the testosterone:estrogen ratio.

Supplementation with Evidence

• Vitamin D3: 4,000–6,000 IU/day (maintain 50–80 ng/mL serum level)
• Zinc: 25–45 mg/day (especially if deficient)
• Magnesium glycinate: 400 mg before bed
• Ashwagandha: 600 mg/day (small but consistent effect on testosterone and cortisol)

Stress Management Chronic cortisol elevation directly suppresses LH production, reducing testosterone synthesis. Address chronic stress before lab-chasing.