From the Research
Red raspberry leaf can pass into breast milk, but the most recent and highest quality study suggests it is generally considered safe for most breastfeeding mothers to consume in moderate amounts. According to the study published in 2018 1, red raspberry polyphenols and their metabolites can be found in breast milk after chronic intake of red raspberries. The study identified 62 (poly)phenolic compounds in plasma, urine, and breast milk samples after the intake of red raspberries. While the study did not specifically investigate the effects of red raspberry leaf on breastfed infants, it provides evidence that the compounds in red raspberry leaf can transfer to breast milk.
Some key points to consider when consuming red raspberry leaf while breastfeeding include:
- Limiting consumption to 1-2 cups of tea daily or following supplement package directions
- Monitoring the baby for any unusual reactions such as digestive upset or changes in feeding patterns
- Consulting with a healthcare provider before regular use, especially if you or your baby have any medical conditions or if you're taking medications
- Being aware that some lactation consultants suggest red raspberry leaf might help with milk production, though scientific evidence for this is limited
It's essential to prioritize the baby's health and well-being, and if any concerns arise, it's best to consult with a healthcare provider. The study published in 2021 2 and 2009 3 provide some insights into the use of raspberry leaf in pregnancy, but they do not directly address the question of whether red raspberry leaf passes into breast milk. The most recent study published in 2023 4 discusses the molecular mechanism of action and effectiveness of raspberry leaves on human cervical ripening and labor induction, but it does not provide information on the transfer of red raspberry leaf compounds to breast milk. Another study published in 2010 5 investigated the effects of commercial preparations of red raspberry leaf on the contractility of the rat's uterus in vitro, but its findings are not directly relevant to the question of whether red raspberry leaf passes into breast milk.