Berberine
Also known as: Berberine HCl, Berberine Phytosome, Goldenseal alkaloid, Goldenseal berberine, Oregon grape alkaloid
Overview
Berberine is an alkaloid compound from Berberis aristata with established clinical evidence for supporting glucose metabolism and cardiovascular health markers. The Phytosome® delivery system enhances bioavailability compared to standard berberine.
Compare Forms
3 formsDifferent chemical forms vary in absorption, side effects, and best use cases. Higher bioavailability scores indicate better absorption.
Berberine Phytosome (Berbevis)
HIGH 100Berberine bound to phosphatidylcholine for enhanced absorption
💡 ~10x higher bioavailability than standard berberine HCl. Allows 550 mg/day vs 1500 mg.
- • Much lower dose needed
- • Less GI upset
- • Better compliance
- • Standardized branded form
- • More expensive per gram
- • Newer — less long-term data than HCl
📝 Best choice for most people. Berbevis at 550 mg = berberine HCl at 1500 mg in glucose lowering.
Dihydroberberine (DHB)
HIGH 95Reduced metabolite of berberine — the form your gut bacteria produce
💡 ~5x bioavailability of standard berberine. ~100-200 mg replaces 1500 mg HCl.
- • Very low effective dose
- • Less GI distress
- • Direct-active form
- • Expensive
- • Limited research vs berberine HCl
📝 GlucoVantage® is the branded version. Excellent if cost permits.
Berberine HCl (Standard)
GOOD 70Conventional berberine hydrochloride extract
💡 Poor (~5% bioavailability). Requires 500 mg, 3x/day with meals.
- • Cheapest
- • Most research data exists at this form/dose
- • Widely available
- • Three doses per day
- • GI side effects common (bloating, diarrhea)
- • Pill burden
📝 Effective but inconvenient. Consider phytosome if compliance is an issue.
Dosage
Ongoing for metabolic support
Prediabetes, metabolic syndrome, PCOS
Mechanism of Action
- • AMPK activation
- • Improves insulin sensitivity
- • Gut microbiome effects
Evidence Quality
Strong evidence, comparable to metformin
Safety & Contraindications
- • Can cause hypoglycemia with diabetes meds
- • Pregnancy
- • Breastfeeding
- • GI upset (common)
- • Constipation
- • Diarrhea
Contraindicated
Caution with liver disease
Interactions
- • Diabetes meds (hypoglycemia risk)
- • CYP450 substrates (many drugs)
- • Cyclosporine
- • May enhance hypoglycemic supplements
- • With food (reduces GI issues)
Stacking & Synergies
Buying Guide
- • Berberine HCl
- • Quality brand
- • Take with meals
- • Check drug interactions
- • Key herb in SIBO protocols
- • Many drug interactions
- • Follow with probiotics after treatment
- • Metformin-like effects
- • Monitor blood sugar if on meds
- • Avoid in pregnancy
Frequently Asked About Berberine
How much Berberine should I take?
When is the best time to take Berberine?
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What is the best form of Berberine?
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Who should not take Berberine?
Top Products with Berberine
Highest-scored catalog products containing Berberine, ranked by our scoring engine.
Browse all Berberine products →Related Guides
In-depth guides covering Berberine — protocols, comparisons, and use cases.
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.



