- May 18, 2024
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Most people only associate testosterone with strength, libido, and aggression—but far fewer realise how closely testosterone levels are tied to body fat, especially belly fat and overall fat distribution.
In a lot of men, there’s a hormonal vicious circle going on:
So you end up in a downward spiral:
More fat → Less testosterone → More fat.
On the flip side, when testosterone levels are optimized properly (whether through TRT or performance-focused dosing), you often see:
In a new write-up, I break down:
If you’re interested in real data and dose numbers, the full breakdown is here:
👉 Testosterone and Body Fat: What Science Really Shows
In a lot of men, there’s a hormonal vicious circle going on:
- More body fat → more aromatase (the enzyme that converts testosterone into estrogen) → more testosterone turned into estrogen
- Higher estrogen plus more fat → stronger suppression of your own natural testosterone production
- Lower testosterone → slower fat burning, poorer fat metabolism → even more fat gain
So you end up in a downward spiral:
More fat → Less testosterone → More fat.
On the flip side, when testosterone levels are optimized properly (whether through TRT or performance-focused dosing), you often see:
- Reduced visceral and abdominal fat
- Increases in lean muscle mass and strength
- Better insulin sensitivity and improved metabolic health markers
In a new write-up, I break down:
- How low testosterone changes fat storage and fat burning
- Why belly fat is such a powerful testosterone killer
- The key NEJM dose–clinical response study that used 25–600 mg/week of testosterone enanthate for 20 weeks
- What actually happened at ~150–200 mg, 300 mg, and 600 mg per week in terms of muscle gain and fat loss
- How to think about simple TRT-range dosing versus more serious recomposition-focused dosing
If you’re interested in real data and dose numbers, the full breakdown is here:
👉 Testosterone and Body Fat: What Science Really Shows
