Archive · 21 Nov 2025
Cannabis May Reduce Alcohol Consumption in Heavy Users
Scientists did an experiment where people who drink and smoke weed a lot were given weed with different amounts of the stuff that makes you high (THC) or fake weed.
Then they were offered alcohol.
The people who got the strongest weed drank the least alcohol.
But we don't know if this would happen in real life, so more tests are needed.
A Brown University study found that cannabis may reduce alcohol consumption in heavy users.
The randomized, placebo-controlled trial offered participants high THC, low THC, or placebo cannabis before giving them the option to drink alcohol.
Participants who smoked high THC cannabis consumed less alcohol than those who smoked low THC or placebo cannabis.
However, the study has some limitations, such as the small sample size and the lab setting, which may not reflect real-world behavior.
More research is needed to confirm these findings and understand the underlying mechanisms.
- Who
- Heavy alcohol and cannabis users aged 21-44
- What
- Participated in a study to test if cannabis reduces alcohol consumption
- When
- The study was conducted in a lab setting
- Where
- The study was conducted at Brown University
- Why
- To understand if there's a causal relationship between cannabis use and reduced alcohol consumption
- Study Type
- Randomized, placebo-controlled trial
- Sample Size
- 157 participants
- THC Levels
- High (7.2%), Low (3.1%), Placebo (0%)
- Alcohol Offered
- 8 mini-drinks to reach 10% body alcohol level
- Reward for Non-Drinking
- Small cash reward