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Study breakdown

Cannabis use was associated with 40% lower risk of alcohol-related liver disease among heavy drinkers

Retrospective CohortModerate evidence
The takeaway

In a matched cohort of over 33,000 people with alcohol use disorder, those with cannabis use disorder had a 40% lower risk of developing alcohol-associated liver disease and lower mortality.

Hepatologists, addiction medicine specialists, ALD treatment researchers.

40% lower risk of alcohol-related liver disease with cannabis use disorder (HR 0.60)

What the researchers found

Compared to non-cannabis users, those with CUD had a 40% lower ALD risk (HR 0.60), 17% lower decompensation risk (HR 0.83), and 14% lower mortality (HR 0.86). Cannabis users without CUD had lower ALD risk but similar decompensation and mortality.

Why it matters

Alcohol-associated liver disease is a leading cause of liver death with limited treatments. The dose-response pattern suggests cannabinoid system modulation may genuinely protect against alcohol liver injury.

The numbers in context

33,114 matched per group. CUD vs non-CU: ALD HR 0.60, decompensation HR 0.83, mortality HR 0.86. CU vs non-CU: ALD risk lower but decompensation and mortality similar.

How the study worked

Propensity-matched cohort using TriNetX (2010-2022). Adults with AUD categorized into CUD, cannabis use, and non-cannabis use. Outcomes over 3 years via Cox regression.

What this study cannot tell us

Observational; cannot prove causation. Healthy user bias possible. CUD based on ICD coding. Concurrent factors not captured.

How to read the evidence

Large propensity-matched cohort with dose-response pattern, but observational design and potential healthy user bias limit causal conclusions.

When this study was published

Published in 2025, data 2010-2022.

The bigger picture

Preclinical data suggest CBD reduces alcohol-induced liver injury. This large clinical dataset supports the hypothesis that the cannabinoid system could be a therapeutic target for ALD.

Questions still open

  • Which cannabinoid drives the protective effect? Would targeted cannabinoid drugs replicate this without cannabis-related harms?

Common questions

Can cannabis protect the liver from alcohol damage?
This study found heavy drinkers who also used cannabis had 40% lower rates of alcohol-related liver disease, but causation cannot be established.
Should people with alcohol problems use cannabis?
This study does not recommend cannabis use. The findings suggest the cannabinoid system may be a target for developing new liver disease drugs.

Read the original research

The Cannabinoid System as a Potential Novel Target for Alcohol-Associated Liver Disease: A Propensity-Matched Cohort Study.

Liver international : official journal of the International Association for the Study of the Liver, 45(11), e70401

Citation

Fakhoury, Butros; Jahagirdar, Vinay; Rama, Kaanthi; Hudson, David; Wang, Wei; Díaz, Luis Antonio; Arab, Juan Pablo. (2025). The Cannabinoid System as a Potential Novel Target for Alcohol-Associated Liver Disease: A Propensity-Matched Cohort Study.. Liver international : official journal of the International Association for the Study of the Liver, 45(11), e70401. https://doi.org/10.1111/liv.70401

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