How GLP-1 Drugs Affect the Body and Mind During Alcohol Drinking | Research

The takeaway

Preliminary study examines whether GLP-1 drugs reduce alcohol consumption through peripheral (body) or central (brain) mechanisms in people with obesity.

Preliminary
First study measuring real-time physiological and perceptual effects of GLP-1 drugs during alcohol drinking

What the researchers found

Preliminary evidence on physiological and perceptual effects of GLP-1 drugs during alcohol consumption in obese individuals.

Why it matters

If GLP-1 drugs can safely reduce alcohol consumption, they could address two major health crises — obesity and alcohol use disorder — simultaneously.

The numbers in context

N=20 (1:1 allocation); no significant differences in alcohol PK between GLP-1 RA users and controls.

How the study worked

Observational study measuring physiological and perceptual outcomes during alcohol consumption in GLP-1 RA users with obesity.

Who was studied

Adults with obesity, half on GLP-1 RAs

What this study cannot tell us

Preliminary study — small sample, observational design. Cannot establish causation or compare to established AUD treatments.

How to read the evidence

Preliminary observational study — hypothesis-generating but not definitive.

When this study was published

Published in 2025, part of the emerging GLP-1 and addiction research wave.

The bigger picture

This adds mechanistic data to the growing evidence that GLP-1 drugs affect reward pathways beyond just appetite.

Questions still open

Is the alcohol reduction effect dose-dependent?
Would GLP-1 drugs be effective for alcohol use disorder without comorbid obesity?

Common questions

Do GLP-1 drugs reduce desire to drink alcohol?

Emerging evidence suggests they may. This study examined whether the effect works through the body or the brain during actual drinking.

Should I use a GLP-1 drug to cut down on drinking?

GLP-1 drugs are not approved for alcohol use — this is early research. Talk to your doctor about established treatments for alcohol reduction.

Read the original research

A preliminary study of the physiological and perceptual effects of GLP-1 receptor agonists during alcohol consumption in people with obesity.

Scientific reports, 15(1), 32385

View on PubMed ↗Publisher’s paper ↗

Citation

Quddos, Fatima; Fowler, Mary; de Lima Bovo, Ana Carolina; Elbash, Zacarya; Tegge, Allison N; Gatchalian, Kirstin M; Kablinger, Anita S; DiFeliceantonio, Alexandra G; Bickel, Warren K. (2025). A preliminary study of the physiological and perceptual effects of GLP-1 receptor agonists during alcohol consumption in people with obesity.. Scientific reports, 15(1), 32385. https://doi.org/10.1038/s41598-025-17927-w