Tier 2 — strong
Efficacy of berberine in patients with type 2 diabetes mellitus
Metabolism: clinical and experimental
2008
57(5):712-717
Bibliography
- PubMed
- PMID 18442638
- PubMed Central
- PMC2410097
- Funding
- Supported by Xinhua Hospital and NIH grant P50 AT02776-020002.
- Competing interests
- A complete competing-interest declaration was not available in the accessible source; no absence of conflicts is inferred.
Study snapshot
| Design | Pilot randomized comparison plus separate uncontrolled add-on cohort |
|---|---|
| Model | Human participants; see population |
| Sample | 36 randomized in study A; 48 in a separate add-on study |
| Intervention | Berberine 500 mg three times/day; metformin comparator or add-on to prior treatment |
| Duration | 13 weeks (approximately 3 months) |
| Endpoints | Fasting and postload glucose; HbA1c and insulin sensitivity; Lipid profile and tolerability |
What the study showed, in plain terms
Key findings
What this study can and cannot tell us
Citation network
Articles citing this research paper
Biohack Blueprint analyses that reference this study in their evidence base.
- Best Berberine Supplements: Formulas, Testing and Value ComparedCompare the best berberine supplement options using official labels, testing claims, active amounts, current price context, safety and clear buying criteria.Read analysis
- Berberine and Cinnamon: Combination Benefits and Study LimitsBerberine and cinnamon evidence: examine the 2025 trial, Ceylon claims, chromium blends, glucose and LDL findings, weight results and safety.Read analysis
- Berberine Gummies vs Capsules: Dose, Ingredients and EvidenceBerberine gummies vs capsules and liquids: compare active doses, servings, ingredients, absorption claims, testing, cost and human evidence.Read analysis
- Berberine HCl: Hydrochloride, Plant Extracts and Label DifferencesWhat is berberine HCl? Understand hydrochloride, salt and extract amounts, 500 mg labels, enhanced formulations, human evidence and product quality.Read analysis
- Berberine and Gut Health: Microbiome, IBS and Infection ResearchBerberine gut-health research explained: microbiome trials, IBS-D, SIBO boundaries, H. pylori combinations, adenoma recurrence and digestive safety.Read analysis
- Berberine for SIBO: Trial Evidence, Herbal Formulas and SafetyBerberine for SIBO: audit the herbal comparison, BRIEF-SIBO protocol and conference results, methane questions, combinations and treatment limitations.Read analysis
- Berberine vs Ozempic: Is It Really Nature’s Ozempic?Berberine vs Ozempic explained: mechanisms, STEP 1 weight-loss context, blood sugar, safety, combination questions and the “nature’s Ozempic” claim.Read analysis
- Berberine vs Metformin: Differences and Taking Them TogetherBerberine vs metformin: examine the pilot trial, blood-sugar evidence, weight and PCOS questions, safety differences and supervised combination use.Read analysis
- Berberine for Blood Sugar: Diabetes, Insulin Resistance and HbA1cReview berberine for blood sugar, HbA1c, insulin resistance and prediabetes. Compare controlled trials, real effect sizes, monitoring and safety.Read analysis
- Berberine Interactions: Medicines, Supplements and AlcoholExplore demonstrated berberine interactions, CYP enzymes, cyclosporine, diabetes medicines, statins, thyroid questions, supplements and alcohol.Read analysis
- Berberine Side Effects: Digestive Symptoms and Long-Term SafetyUnderstand berberine side effects, digestive complaints, glucose concerns, heart-rhythm reports, long-term safety limits and when to seek medical help.Read analysis
- Best Time to Take Berberine: Meals, Morning or Night?When should you take berberine? Compare meal instructions, morning and bedtime use, divided doses, fasting questions and medicine-spacing limitations.Read analysis
Editorial review
Reviewed by the Biohack Blueprint research team
Last verified



