Cannabis use before and after metabolic and bariatric surgery: literature review.

As accessibility and legalization of cannabis rise throughout the United States (US), programs have sought guidance about whether its use should be considered a contraindication or, if not a contraindication, what recommendations patients should receive regarding appropriate use before and after metabolic and bariatric surgery (MBS). In this review, medical, nutritional, pharmacological, and psychological considerations are presented by a multidisciplinary group of members of the American Society for Metabolic and Bariatric Surgery (ASMBS). Research suggests several risks associated with long-term cannabis use in the general population, but research in the MBS population, specifically, is limited.