
Is It Safe to Smoke Weed While Breastfeeding? What the Science Says
THC ends up in breast milk. Here's what research and pediatric experts say, and how long it can stick around.
No, using weed while breastfeeding isn't considered safe: THC passes into breast milk, can be detected there for hours or even days, and may affect a baby's developing brain. That's why both the American Academy of Pediatrics and the World Health Organization advise against it. Cannabis safety is hotly debated in general, and even more so for vulnerable groups like pregnant and breastfeeding moms, because breastfeeding is such a crucial stage of a baby's development. Here's what we know.
Weed and breastfeeding: why it's controversial
Using cannabis while breastfeeding is a touchy subject. Some moms consider weed as a way to ease stress, anxiety or pain, especially after giving birth. Still, it's essential to understand the potential risks of mixing cannabis and breastfeeding.
What the science says
1. THC gets into breast milk: THC, the compound in weed that gets you high, can pass into breast milk. Several studies have detected THC in the milk of mothers who use cannabis, which raises concerns about how it might affect babies.
2. Possible effects on a baby's development: Exposure to THC through breast milk could affect the development of a baby's brain and nervous system. More research is needed to fully understand the long-term effects, but some studies suggest it could influence a child's cognition and behavior.
3. Moms' stories: Some moms who used weed while breastfeeding have shared their experiences. Those stories vary a lot, but it's important to remember that individual experiences don't necessarily reflect the overall risks of cannabis and breastfeeding.
What do the experts say?
Both the American Academy of Pediatrics and the World Health Organization (WHO) advise against using cannabis while breastfeeding. Their recommendation is that moms skip weed to protect their babies' well-being.
Other things to keep in mind
A few key factors to consider:
1. Talk to a health professional: If you have questions or are thinking about using cannabis while breastfeeding, it's essential to talk to a healthcare provider. They can give you guidance and support based on your specific situation.
2. Look at other options: If you're looking for relief from stress, anxiety or pain, there are safer alternatives while breastfeeding, like meditation, moderate exercise or relaxation techniques.
3. Edibles aren't a loophole: Eating cannabis instead of smoking it gets rid of the risks that come with smoke, but the active compounds can still end up in your breast milk.
Weed and breastfeeding are two things that call for caution. Since THC can pass into breast milk and potentially affect your baby, the smart move is to avoid cannabis while breastfeeding. Talk to a health professional about any specific concerns and to find safe ways to relieve stress or pain. Your baby's health and well-being come first during this crucial stage of development.

How long after smoking weed can you breastfeed?
How long you'd need to wait to breastfeed after smoking weed depends on several factors. THC, the main psychoactive compound in cannabis, can stay in your system for a variable amount of time. In general, THC has been detected in breast milk for several hours and, in some cases, for days after use. Your metabolism, body weight, how much you used and how often you use all affect how long THC sticks around in your body.
To make an informed decision, it's a good idea to talk to a healthcare provider. Your doctor or a lactation consultant can give you specific guidance based on your situation and how much you've used. Some parents also look at at-home breast milk drug test strips, which can give a rough idea of whether THC is present before you nurse, though they're no substitute for medical advice.
Overall, breastfeeding moms are advised to avoid cannabis because of the potential risks to the baby's health. THC may affect a baby's brain development and lead to long-term negative effects. At the end of the day, your baby's safety and well-being come first. If you've used cannabis and you're breastfeeding, talk to a health professional about how to proceed.
How do drugs affect breastfeeding?
Using drugs while breastfeeding can have negative effects on both mom and baby. Those effects vary depending on the type of drug and how much is used. Here are some of the general ways drugs can affect breastfeeding:
- Substances passing into breast milk: Many drugs, including illegal ones and some prescription medications, can pass into breast milk in significant amounts, which means the baby can be exposed to them through nursing.
- Effects on the baby: Exposure to drugs through breast milk can affect a baby in different ways, including drowsiness, irritability, trouble feeding and sleeping, and changes in behavior. Some substances, like cannabis or alcohol, may also affect the baby's cognitive and physical development.
- Growth and development problems: A mother's drug use can interfere with a baby's normal growth and development, including delays in motor and cognitive development.
- Risks to mom's health: Drugs can also harm the mother's health, which in turn could affect her ability to care for her baby.
- Risk of dependence: A mother using drugs while breastfeeding runs a risk of dependence or addiction, which could make caring for the baby harder.
- Risk of intoxication: Some drugs, like illegal substances or certain medications, can cause acute intoxication in the mother, affecting her ability to look after the baby.
Bottom line: using drugs while breastfeeding is considered risky and isn't recommended. Your baby's safety and well-being are what matter most, and moms should be aware of how substances can reach their kids through breast milk. If you have concerns about this, talk to a healthcare provider or a lactation consultant for advice tailored to your situation.
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