Loading…
We use essential cookies (authentication, your saved goals/stack) by default. With your permission we'll also enable privacy-respecting analytics (Vercel Web Analytics, anonymous load-time metrics) and error-replay diagnostics (Sentry — DOM snapshots only when an error fires) so we can fix bugs faster. Learn more
Head-to-head evidence comparison — which supplement is right for you?
Berberine wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
12 of 16 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mixed evidence
1 of 3 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Berberine and Cat's Claw have evidence — compare verdict strength side-by-side.
500mg 2-3x daily (1000-1500mg total)
With meals, Split into 2-3 doses
Berberine HCl capsules
250-350mg standardized extract or 1-3g dried bark, 2-3x daily
With meals
Standardized extract (3% oxindole alkaloids)
4-12 weeks
8-12 weeks
First 2 weeks
If on diabetes medications
4-8 weeks
2-4 weeks
4-8 weeks
Clinical Efficacy of Curcumin, Resveratrol, Silymarin, and Berberine on Cardio-Metabolic Risk Factors Among Patients With Type 2 Diabetes Mellitus: A Systemic Review and Bayesian Network Meta-Analysis
Phytotherapy research : PTR (2025) · Meta analysis · n=1337
For HbA1c, silymarin was more effective than resveratrol (MD -2.08, 95%Cl -3.50 to -0.72) (P < 0.05).
Effects of berberine and barberry on selected inflammatory biomarkers in adults: A systematic review and dose-response meta-analysis of randomized clinical trials
Phytotherapy research : PTR (2023) · Meta analysis · n=1600
In addition, the non-linear analysis showed a significant lowering effect of berberine/barberry on IL-6 and TNF-α levels in doses <1000 mg/day and less than 5 weeks of intervention.
Berberine Ursodeoxycholate for the Treatment of Type 2 Diabetes: A Randomized Clinical Trial
JAMA network open (2025) · Rct · n=113
The study included 113 patients with T2D (mean [SD] age, 54.3 [10.6] years; 72 male [63.7%]) who were randomized.
Uncaria tomentosa as a Promising Natural Source of Molecules with Multiple Activities: Review of Its Ethnomedicinal Uses, Phytochemistry and Pharmacology
International journal of molecular sciences (2025) · Systematic review
The present paper reviews research progress relating to the ethnobotany, phytochemistry and pharmacology of Ut, and some promising research routes are also discussed.
Systemic therapies for preventing or treating aromatase inhibitor-induced musculoskeletal symptoms in early breast cancer
The Cochrane database of systematic reviews (2022) · Meta analysis · n=137
The two studies, investigating vitamin D and omega-3 fatty acids, showed a treatment effect with 95% CIs that did not include an MCID for pain.
Bioactive Molecules from Tropical American Plants: Potential Anti-Inflammatory Agents for Cytokine Storm Management
Molecules (Basel, Switzerland) (2025) · Systematic review
Key polyphenols, like quercetin and luteolin, found in plants such as Achyrocline satureioides and Mangifera indica demonstrate the downregulation of NF-κB and inhibition of pro-inflammatory cytokines.
Based on meta-analyses showing FPG reduction of 0.59-0.82 mmol/L and HbA1c reduction of 0.63%. Studies primarily used berberine HCl with low bioavailability. Effects require divided doses and may take 8-12 weeks.
Based on systematic review evidence showing significant pain reduction in knee osteoarthritis. Limited number of direct RCTs. Most studies used 250-350mg doses. GI upset more common at higher doses.
AI-estimated from published studies. Interpret as directional guidance.
Berberine has a higher evidence score (9/10 vs 8/10) and wins in 2 of 3 categories.
For reduce inflammation, Berberine has a higher relevance score (95 vs 75).
No known interactions between Berberine and Cat's Claw have been documented in our database. However, always consult a healthcare provider before combining supplements.