Study Finds One in Four Army Men Have Low Testosterone

A study conducted from 2024 to 2026 reveals significant rates of low testosterone among U.S. Army personnel.

Updated on Oct. 15, 2026 in Men’s Health

Study Finds One in Four Army Men Have Low Testosterone

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A study of 479 male personnel has determined that 26 percent of U.S. Army men have low testosterone levels, defined as below 300 nanograms per decilitre. Findings from the data collection period of 2024 to 2026 suggest that over 100,000 soldiers may be affected.

Why it matters

The military has launched a testosterone-boosting initiative to optimize the capabilities and longevity of service members. Understanding these prevalence rates is essential for managing the health risks and potential side effects associated with replacement therapies.

Low testosterone was identified in 26 percent of 479 tested personnel, with prevalence rising to 33 percent for those aged 30 and older. The threshold for this classification is set at 300 nanograms per decilitre.

The players

U.S. Army

The U.S. Army is the primary land warfare service branch of the United States Armed Forces.

U.S. Defence Secretary

The U.S. Defence Secretary serves as the principal defense policy advisor to the President and exercises authority over the Department of Defense.

The details

Researchers utilized data from the Military Health and Nutrition Examination Study, which evaluated active-duty men at five military centers. The findings highlight clinical concerns, as testosterone replacement therapy carries risks such as bone fractures, pulmonary embolism, acne, and reduced sperm production.

The Military Health and Nutrition Examination Study collected data between 2024 and 2026.
The US defence secretary announced the testosterone-boosting initiative in July 2026.

The Big Picture

This analysis draws directly from the Military Health and Nutrition Examination Study to provide a granular view of service member health. It follows established protocols from the program to determine how hormonal health impacts operational readiness.

For service members, the findings may lead to mandatory annual screenings for those aged 30 and older. Patients considering replacement therapy should be aware of the potential for side effects including reduced sperm production and an increased risk of pulmonary embolism.

The takeaway

Maintaining healthy testosterone levels is a key component of long-term physical wellness and injury prevention. Consulting with medical professionals is essential to balance the benefits of treatment against the risks of clinical interventions.