Rutgers Study Suggests GLP-1 Medications May Weaken Links Between Impulsivity, Alcohol Use and Violence

Researchers at Rutgers University examined a nationally representative survey of 7,521 U.S. adults to assess whether use of glucagon-like peptide-1 (GLP-1) receptor agonists—such as semaglutide, the active ingredient in Ozempic and Wegovy—affects the relationship between known risk factors for violence and self-reported violent behavior. The analysis compared 597 current GLP-1 users with 224 former users and identified a markedly reduced association between impulsivity, alcohol consumption and violent acts among those presently taking the medication.

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GLP-1 drugs are approved for type 2 diabetes and chronic weight management. Beyond appetite suppression, earlier studies have linked these agents to reduced cravings for alcohol and other substances, suggesting influence on reward pathways and impulse control. The Rutgers team built on this literature to explore a potential impact on violence-related outcomes.

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• Lead author: Daniel Semenza, director of research at the New Jersey Gun Violence Research Center, Rutgers School of Public Health.

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• Data source: A summer-time, nationally representative survey that asked participants about impulsivity (e.g., enjoyment of high-speed chases), alcohol use, and involvement in violent crimes over the past year.

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• Sample size: 7,521 respondents; 821 reported ever using a GLP-1 drug, of whom 597 were current users.

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• The statistical link between impulsivity and violent behavior was approximately 62 % weaker among current GLP-1 users compared with former users.

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• The link between alcohol use and violent behavior was about 52 % weaker in the current-user group.

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• Subsequent analysis showed less clear evidence that GLP-1 use directly attenuated the alcohol-violence relationship, indicating the need for further clarification.

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The research team emphasized that the study is observational and cross-sectional, precluding definitive causal claims. They described the results as a “pattern” suggesting that GLP-1 receptor agonists may modify behavioral pathways—such as reward processing, craving, stress regulation, and behavioral control—that are relevant to violence risk. The authors called for larger, longitudinal investigations to determine whether medication exposure precedes changes in criminal behavior.

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• Observational design: Cannot establish that GLP-1 use causes reduced violence; only an association is observed.

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• Cross-sectional snapshot: Timing of medication use relative to violent acts is unclear.

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• Potential confounders: Unmeasured factors (e.g., socioeconomic status, concurrent therapies) may influence both drug uptake and violent behavior.

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While the impulsivity-violence link showed a robust attenuation, the evidence for a similar effect on the alcohol-violence connection was weaker, highlighting an internal inconsistency that warrants targeted follow-up.

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• “We view this study as a first step, not a final answer,” — Daniel Semenza, Director of Research, New Jersey Gun Violence Research Center

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• “GLP-1 medications may influence behavioral pathways that are relevant to violence risk.” — Daniel Semenza

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• “GLP-1 receptor agonists appear to affect reward processing, craving, stress regulation, and behavioral control,” — Daniel Semenza

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• “One interpretation of our findings is that these medications may weaken the extent to which impulsive tendencies or alcohol-related risk translate into violent behavior.” — Daniel Semenza

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• “An important next step is examining these questions using large-scale longitudinal and administrative datasets that allow researchers to better address causality and timing,” — Daniel Semenza

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The authors plan to analyze extensive longitudinal and administrative records to track medication prescriptions alongside criminal-legal system involvement, aiming to clarify causality, temporal ordering, and the mechanisms by which GLP-1 drugs might influence violent behavior.

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