Marijuana

Is it safe for mothers who use marijuana to breastfeed?

Data are insufficient to say yes or no. Chemicals from marijuana in any form (including edibles, oils, or other concentrates) can be passed from a mother to her infant through breast milk. These chemicals have the potential to affect a variety of neurodevelopmental processes in the infant. Tetrahydrocannabinol (THC), the main active component of marijuana, is stored in body fat and slowly released over time, meaning an infant could be exposed to an unknown amount and for an extended period of time. In addition, some products, including cannabidiol (CBD) products, may contain other contaminants (e.g., pesticides, heavy metals, bacteria, and fungus) that could be dangerous to a mother and her infant.

Data on the effects of marijuana and CBD exposure to the infant through breastfeeding are limited and conflicting. To limit potential risk to the infant, breastfeeding mothers should be advised not to use marijuana or marijuana-containing products in any form, including those containing CBD, while breastfeeding.

If a mother continues to use marijuana or CBD while breastfeeding, she should be encouraged to significantly reduce her intake. To minimize secondhand smoke exposure, marijuana products should not be smoked around babies or children. Marijuana use may also impair a mother or other caregiver’s judgement and ability to care for an infant.