Both lower blood sugar and the effect is additive.
Berberine activates AMPK and improves insulin signaling. Chromium enhances insulin receptor sensitivity.
Monitor blood sugar closely if combining, especially if on diabetes medication. Risk of hypoglycemia.
Known drug category interactions for these supplements. Especially relevant if you take prescription medications.
Berberine lowers blood sugar through similar mechanisms as metformin, and combining them may cause hypoglycemia.
Do not combine without medical supervision. If your doctor approves, start berberine at a low dose and monitor blood sugar closely.
Reference values for safe daily intake of these supplements.
No established UL. IOM could not determine a UL due to insufficient adverse effect data, but caution is advised at high supplemental doses.