Cannabis use and breastfeeding: frequency of use, delta-9 tetrahydrocannabinol in milk, and clinical strategies to reduce harm

As cannabis legalization expands, increasing numbers of pregnant and breastfeeding women may view it as a safe, natural alternative for managing health concerns. This article examines current research on cannabis use during breastfeeding, with a focus on delta-9 tetrahydrocannabinol (THC) concentration in milk. Frequency of cannabis use influences the amount of THC in milk and is related to self-reported health problems and adverse childhood experiences. This review also suggests clinical strategies for reducing risk while supporting maternal and infant well-being.