Evidence-Based Benefits
- Blood sugar control — a 2008 clinical trial found berberine lowered fasting blood glucose by 3.6 mmol/L and HbA1c by 0.9%, comparable to metformin at the same dose in a head-to-head comparison
- Lipid metabolism — berberine reduces LDL cholesterol by 20-25%, triglycerides by 35%, and increases HDL cholesterol in multiple controlled trials, with a unique mechanism via upregulating LDL receptor expression
- AMPK activation — berberine activates AMP-activated protein kinase, a master metabolic regulator that increases glucose uptake, enhances insulin sensitivity, and promotes fatty acid oxidation
- Anti-inflammatory effects — berberine inhibits NF-kB signaling and reduces inflammatory markers including CRP, TNF-alpha, and IL-6 in clinical studies
- Antimicrobial properties — demonstrated activity against bacterial, fungal, and parasitic infections; historically used for gastrointestinal infections in traditional Chinese medicine