There is no known safe amount of cannabis during breast/chestfeeding. THC—the main active component in cannabis—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. THC may affect a baby’s brain development and result in hyperactivity, poor cognitive function, and other long-term effects.
Talk to your healthcare provider to learn more about the risks of marijuana use during pregnancy and breast/chestfeeding.