High testosterone levels in men provide specific physiological and metabolic benefits
Evidence consistently shows that maintaining or restoring physiological testosterone levels provides specific metabolic and physiological benefits, particularly regarding improvements in body composition, lean muscle mass, and insulin sensitivity in men with deficiency or metabolic syndrome.
The retrieved literature consistently supports the claim that testosterone provides specific physiological and metabolic benefits, particularly relating to body composition improvements (increased lean mass, reduced fat mass) and metabolic parameters like insulin resistance. While some metabolic endpoints such as broader glycemic control show heterogeneity or require further study, the core physiological and metabolic benefits in targeted populations are well-supported.
Ntais C, Vantarakis A, Chatziprodromidou IP. Metabolic Effects of Testosterone Replacement Therapy in Men with Functional Secondary Hypogonadism, Obesity and Type 2 Diabetes or Metabolic Syndrome: A Systematic Review.. 2026. https://doi.org/10.3390/medsci14030418
Paper [0] notes that testosterone replacement therapy improves body composition (increased lean mass, reduced fat mass) and can favorably impact insulin resistance in selected hypogonadal men.
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Canal de Velasco LM, González Flores JE, Kraus Fischer G, de la Vega M, Morales Arteaga JL, Bello Margalef A, Segón Mora S, Abruch-Fleisher A, Azcona Cervera A. Testosterone Replacement Therapy as a Foundation for Body Composition Remodeling: Synergistic Roles of Resistance Training and Protein Intake.. 2026. https://doi.org/10.7759/cureus.109931
Paper [3] highlights that testosterone plays a central role in regulating body composition, skeletal muscle metabolism, and physical performance.
H Ueshiba. 127 Effects of Testosterone Ointment in Japanese Men with Metabolic Syndrome. 2022. https://doi.org/10.1016/j.jsxm.2022.03.400
Paper [7] demonstrates that testosterone supplementation significantly improves insulin resistance and lipid profiles in men with metabolic syndrome.
Azza Fithra Alhanifa, Nyoman Bayu Rusdyana Krisna. Evaluating the Effects of Testosterone Therapy on Cardiometabolic Health and Well-being in Men with Hypogonadism. 2025. https://doi.org/10.66266/inajemd.v2i2.69
Paper [8] concludes that testosterone therapy consistently provides clear physiological benefits regarding body composition and sexual function.
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