Does testosterone increase metabolism in men?
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 09, 2025 · 12 min read
In men with confirmed testosterone deficiency, testosterone replacement can modestly increase metabolic rate over 6–12 months, largely by adding lean muscle (which raises basal metabolic rate) and reducing visceral fat. The biggest payoff shows up when strength training, protein intake, and sleep are dialed in—and men with normal levels usually see little metabolic benefit while ...