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Understanding Testosterone and Weight
March 31st, 2026

Does Low Testosterone Cause Weight Gain in Men?

Yes, low testosterone can contribute to weight gain in men. When testosterone levels drop below 300 ng/dL, men often experience increased body fat and decreased muscle mass. This hormonal shift slows metabolism by up to 20%, making it easier to gain weight and harder to lose it. Low testosterone also increases visceral fat accumulation around the abdomen, which poses additional health risks. Studies show men with testosterone deficiency gain an average of 10-15 pounds more than those with normal levels. The hormone directly affects how the body processes fat and builds muscle tissue.

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