New Study Links Cannabis Use to Reduced Alcohol Consumption

A recent study published in the American Journal of Psychiatry indicates that cannabis use may help individuals reduce their alcohol consumption. Conducted by researchers at Brown University, the study involved 157 adults aged 21 to 44, all of whom reported heavy alcohol use and cannabis consumption at least twice a week. Participants were evaluated in a simulated bar setting over three days, where they smoked cannabis cigarettes containing varying levels of THC before being exposed to alcohol cues.

The participants received either cannabis with 7.2% THC, 3.1% THC, or a placebo with 0.03% THC. They were then presented with a choice between their preferred alcoholic drink or a cash payment for each drink they declined. Over the course of two hours, participants consumed enough alcohol to raise their blood alcohol level to approximately 0.10%, alongside the cannabis.

According to the findings, those who smoked the lower potency cannabis consumed about 19% less alcohol compared to the placebo group. Participants using the higher potency cannabis showed even greater reduction, with a 27% decrease in alcohol intake. Furthermore, those who smoked higher THC joints delayed their first drink longer than those who received the placebo and reported lower urges to drink.

Jane Metrik, the lead author and a professor at Brown University, stated, “What we found was consistent with this idea of the substitution effect popularized by the California sober trend. Instead of seeing cannabis craving and drinking, we saw the opposite.” She cautioned, however, that the results are preliminary. “We’re not ready to tell people seeking treatment for alcohol, go ahead and substitute cannabis, and it will work out for you,” she added in an interview.

The study’s implications may resonate with those looking to moderate their drinking, especially during challenging periods such as the holiday season. Many individuals use alcohol to unwind, but alternatives exist to help shift focus. According to Kaiser Permanente, activities such as walking, meditation, or engaging in hobbies can serve as effective distractions from alcohol.

In addition, simple strategies such as drinking a glass of water between alcoholic beverages can help reduce overall consumption. Maintaining a drinking diary, scheduling alcohol-free days, and ensuring there is no alcohol readily available at home are further recommendations from Harvard Health.

While the study highlights the potential of cannabis as a substitute for alcohol, it also emphasizes the importance of responsible consumption and the need for further research. As more people explore the “California sober” lifestyle—where cannabis is used in place of alcohol—this study offers a scientific perspective on the trend.