Is Berberine safe while nursing? Customer Service July 06, 2018 15:34 Updated Berberine can be transferred to the baby during breastfeeding so best to be safe and avoid until nursing is completed. Related articles Is Berberine estrogenic? Can Berberine cause upset stomach? Is EGCG found in Matcha tea? Which sweetners are okay on Glow15 program? What is Glow15? Comments 0 comments Please sign in to leave a comment.