Nutrition & Diet
Carbs and Male Performance: How Much, What Kind, When
Why low-carb isn't optimal for most lifting men — and how to use carbs around training.
7 min read · XT Editorial Team · Reviewed & updated
Carbs and hormones
Adequate carbohydrate intake supports thyroid function, lowers cortisol, and provides the glycogen that fuels high-intensity training. Aggressive low-carb often blunts performance and hormones.
How much and when
Active men typically thrive on 3–5 g/kg carbs, weighted toward the hours around training. Whole-food sources — rice, potatoes, oats, fruit — outperform processed carbs for most men.
Frequently asked questions
- Is keto bad for testosterone?
- Mixed evidence. Short-term, often neutral to positive. Long-term in lifting men, often suboptimal for performance.
- Should I eat carbs at night?
- For most men, yes — evening carbs support sleep quality and recovery.
Related reviews, comparisons & tools
Comparisons
Ready to take action?
Compare our editor-rated testosterone-support formulas or take the 2-minute quiz to find what fits your goals.