Study Reveals Blood Sugar, Not Age or Testosterone, Key to Men's Sexual Health

July 13, 2025
Study Reveals Blood Sugar, Not Age or Testosterone, Key to Men's Sexual Health
  • Testosterone influences libido but does not have a direct effect on erectile performance.

  • Findings suggest that maintaining good metabolic health is key to sustaining reproductive health as men age.

  • While testosterone levels do not directly impact erectile function, they are linked to libido assessments among men.

  • A recent study highlights that metabolic health, especially blood sugar levels, plays a more crucial role than age or testosterone in the decline of men's sexual health.

  • The research underscores that men can preserve or even improve their sexual health through lifestyle changes and medical interventions, emphasizing the importance of metabolic health.

  • Men with slightly elevated blood sugar levels below the diabetic threshold (6.5% HbA1c) showed declines in sperm motility and erectile function, despite hormone levels and semen parameters remaining mostly normal.

  • Even mild increases in blood sugar, below diabetic levels, are associated with impaired sperm movement and erectile performance.

  • A long-term study conducted from 2014 to 2020 followed 117 healthy men aged 18 to 85, examining changes in semen quality, hormonal profiles, and erectile function.

  • The study involved 200 initial participants, with 117 remaining after six years, none of whom had diabetes, heart disease, or cancer.

  • Researchers tracked these men over six years, focusing on hormones, semen quality, erectile function, and blood sugar levels.

  • This research, part of the FAME 2.0 project, aims to help healthcare providers develop effective strategies for maintaining men's sexual health.

  • The findings are expected to guide healthcare professionals in creating personalized plans to preserve male sexual health.

Summary based on 3 sources


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