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Smoking weed could help reduce alcohol intake, new study reveals
19th November, 2025 11:06 AM
Countless college students have conducted the experiment: what happens when you mix alcohol and cannabis? But few have done so in a lab, under the watchful eye of scientists, carefully calibrating their breathing as they take hits of research-grade marijuana.
A new study has taken this question seriously, providing one of the first controlled looks at how cannabis use affects alcohol consumption.
Researchers at Brown University corralled around 150 adults into a makeshift bar on campus to study their drinking behavior after smoking cannabis.
Participants were monitored closely, with each inhale carefully measured, and their subsequent alcohol consumption tracked.
The setup was designed to mimic real-world conditions, allowing scientists to observe how cannabis use influenced the desire to drink in a social setting while maintaining strict control over dosage and timing.
The results of the study suggest that smoking weed could lead to reduced alcohol intake, at least in the short term. While the experiment does not prove long-term behavioural changes, it highlights an important interaction between the two substances.
Researchers noted that participants who smoked cannabis generally reported feeling less compelled to drink, suggesting that cannabis might act as a partial substitute for alcohol for some individuals.
Experts say the study is significant because it moves beyond anecdotal evidence or self-reported habits, which have often dominated discussions about cannabis and alcohol.
By measuring real-time behaviour in a controlled environment, the research provides stronger evidence of a causal link between cannabis use and lower alcohol consumption. It also opens the door to further studies examining how these patterns might influence public health and harm reduction strategies.
The study comes at a time when cannabis use is increasingly normalized, and trends such as “California sober”—choosing cannabis over alcohol—are gaining popularity.
Advocates say this approach helps people reduce alcohol-related harm, while critics caution that cannabis is not risk-free. Understanding the ways the substances interact is therefore crucial for health messaging and policy decisions.
While more research is needed to fully understand the long-term effects, this study provides a first step toward answering the age-old question about mixing alcohol and cannabis.
By bringing science into the experiment, researchers have offered a clearer picture of how marijuana might influence drinking habits in controlled, real-world-like conditions.
