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Berberine HCl: verification pending
We’re confirming the science for this compound before we publish a form ranking. Our team reviews every ranked page against peer-reviewed absorption data — this one is still under review, so we are not showing a score yet.
Check back soon. Rankings are reviewed by Dr. Brennan Commerford, D.C.
References
- A 2025 pharmacology review found that berberine HCl activates AMPK — a key cellular energy-sensing enzyme — to promote fat breakdown, and also upregulates uncoupling protein 1 (UCP1), a mechanism linked to adipose tissue browning, while noting the compound's oral bioavailability is under 1%. PubMed
- A 2024 pharmacology review reported that berberine HCl affects glucose and fat metabolism and modulates the gut microbiome, and observed neuroprotective activity in various preclinical models — though the authors noted that robust human evidence, especially for aging-related benefits, is still limited and more research is needed. PubMed
- A 2020 pharmacology review proposed that berberine HCl's broad physiological activity, despite its own poor absorption, may stem largely from its influence on gut bacterial populations, citing preclinical evidence that it reverses pathological gut-microbiota shifts seen in models of obesity, hyperlipidemia, and diabetes. PubMed
- A 2017 pharmacology review reported that berberine HCl undergoes extensive first-pass metabolism after oral intake, and that its active metabolites — such as berberrubine and demethyleneberberine — exhibit comparable antioxidant, anti-inflammatory, and hypolipidemic activity to the parent compound, helping explain how berberine may exert effects despite limited direct absorption. PubMed
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.