New Study Explores Testosterone and Binge Eating Risk

Researchers are studying how hormones affect binge eating in women to develop better, more personalized treatment approaches.

Updated on Oct. 30, 2026 in Weight Loss

Flat opaque gouache-painted illustration of a glass beaker filled with amber liquid, representing the biological study of hormone levels. — Researchers at Michigan State and Texas A&M have launched a study investigating the link between testosterone and binge eating risks in women. AI Illustration. Upload story photo >

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The National Institute of Mental Health has awarded a $3.7 million grant to researchers at Michigan State University and Texas A&M University to investigate the link between testosterone and binge eating risk in women. This research aims to better understand the biological mechanisms behind a disorder that affects approximately 1 in 6 women.

Why it matters

Understanding how hormones influence binge eating is a critical step toward improving prevention and treatment strategies for the millions of women impacted by the condition. By identifying the specific biological processes at play, scientists hope to develop more personalized approaches to care.

Researchers at Michigan State University and Texas A&M University will use this $3.7 million NIH grant to build upon prior findings from the Klump lab, which established that estrogen and progesterone influence binge eating risk. This study will utilize longitudinal data from the Michigan State University Twin Registry to measure testosterone individually and alongside other gonadal hormones.

The players

National Institute of Mental Health

The federal agency responsible for understanding and treating mental disorders through biomedical and behavioral research.

Michigan State University

A public research university hosting the Klump lab and the Twin Registry used for longitudinal health studies.

Texas A&M University

A public research institution partnering on multi-university clinical and behavioral health investigations.

The details

The research team will analyze how testosterone interacts with estradiol and progesterone to potentially influence binge eating behavior in women. By integrating new hormone measurements with existing longitudinal data from the Michigan State University Twin Registry, the project aims to establish a comprehensive model of hormonal influence. This deep dive into biological processes is designed to lay the scientific foundation for more effective, individualized interventions for those at risk.

The $3.7 million grant award was officially announced on October 29, 2026.

Health Landscape

This project continues the evolution of psychiatric research from symptom-based observation toward a deeper understanding of underlying biological mechanisms. By leveraging the Michigan State University Twin Registry, the study advances the broader field of precision medicine in behavioral health.

This study is a research-stage development, meaning it does not immediately change current diagnostic or treatment protocols for those experiencing binge eating. If you or someone you know is struggling with eating behaviors, it is worth discussing symptoms and potential support options with a primary care physician or mental health specialist.

The takeaway

Understanding the hormonal roots of eating disorders may eventually lead to more targeted, personalized prevention and treatment plans. For now, keep track of any persistent patterns in your eating behaviors or mood shifts to share with your physician during your next wellness checkup.