The debate over the “California sober” philosophy has gained a new perspective with a groundbreaking study that reveals a potential link between smoking marijuana and reduced alcohol consumption. Published in a recent paper, the study found that participants who smoked cannabis consumed significantly less alcohol afterward compared to those who smoked a placebo.
Led by psychologist and researcher Jane Metrik from Brown University, the study emphasized that while the findings are intriguing, caution should be exercised when interpreting them. Metrik warned against viewing marijuana as a safe or effective substitute for alcohol, especially for individuals struggling with alcohol use disorder or looking to cut back on drinking. The study highlighted the need for further research to determine if reduced alcohol consumption translates to fewer alcohol-related harms.
The research sheds light on a growing trend among Americans who are turning to marijuana as a way to curtail their alcohol intake, a practice commonly known as “California sober.” While some view this strategy as a potential harm reduction approach, others are skeptical of its long-term effectiveness.
John Kelly, an addiction researcher at Harvard University, noted that while the study shows short-term benefits of substituting marijuana for alcohol, the outcomes may not be sustainable in the long run. Kelly outlined three possible scenarios that can arise when individuals attempt to replace alcohol with cannabis, including developing a harmful addiction to marijuana, reverting back to alcohol consumption, or engaging in heavy marijuana use alongside alcohol consumption.
The study focused on individuals who engaged in heavy episodic drinking and used cannabis but were not seeking treatment for alcohol or cannabis use disorder. Participants were provided with marijuana of varying THC concentrations and offered alcoholic beverages during the study.
Results showed that participants who smoked marijuana with higher THC concentrations consumed less alcohol and waited longer before drinking compared to those who smoked a placebo. The study, funded by the National Institute on Alcohol Abuse and Alcoholism, underscored the need for further research on the long-term effects of cannabis use on alcohol consumption.
While the study revealed promising short-term reductions in alcohol consumption after smoking marijuana, researchers emphasized the importance of conducting long-term observational studies and investigating the use of CBD as an alternative mechanism for reducing alcohol intake. The findings provide a foundation for future research into the complex relationship between marijuana and alcohol use.
In conclusion, the study adds a new dimension to the ongoing discussion on the potential benefits and risks of substituting marijuana for alcohol. While the short-term effects are encouraging, more research is needed to fully understand the implications of using cannabis as a means to reduce alcohol consumption.

