Can You Take Metformin and Berberine Together?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 20th, 2026.
Yes, Metformin and Berberine can generally be taken together safely. Both compounds work through similar mechanisms to improve blood sugar control and insulin sensitivity, potentially offering complementary benefits. Berberine activates AMPK pathways like Metformin, with studies showing it can lower HbA1c by 0.5-1.0%. However, combining them may increase the risk of gastrointestinal side effects like nausea, diarrhea, or stomach upset. The combination could also potentially cause blood sugar to drop too low in some individuals. Always consult your healthcare provider before combining these supplements, especially if you're taking other diabetes medications or have kidney disease, as both compounds affect blood glucose levels significantly.
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