Berberine
Herb ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Plant alkaloid with remarkable metabolic effects, often compared to metformin. Potent for blood sugar management, cholesterol, and gut health.
Exploratory record, not a reviewed medical publication.
See the editorial and medical-review policies for the publication gate.
This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Berberine is a herb most often used for blood sugar management, cholesterol support, gut health. NutriStack rates the overall evidence as strong. A typical adult dose is 500 mg 2-3x daily (with meals), commonly taken as berberine hcl or dihydroberberine (better bioavailability). This profile indexes 21 sources.
The bottom line
Evidence rating strong. Most-documented uses: blood sugar management, cholesterol support, gut health. 21 sources indexed (2008–2024), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Activates AMPK (AMP-activated protein kinase), the master metabolic switch, increasing glucose uptake and fatty acid oxidation. Inhibits PCSK9 (increasing LDL receptor expression). Modulates gut microbiome composition. Inhibits mitochondrial complex I (similar to metformin).15
Dosing & protocol.
Take with meals to reduce GI side effects and match blood sugar spikes; split doses2,21
What it actually costs.
Real-world pricing across three quality tiers. Assumes Berberine HCl.
Assumes 500 mg 2-3 times daily from goal dosage. Vendor basis: NOW/iHerb, Vitacost, Thorne, and Amazon marketplace; dihydroberberine usually prices as premium. Updated 2026-05-28.
The same dose, as food.
How much you'd eat to match a supplemental dose.
Berberine is a concentrated alkaloid from medicinal plants such as barberry and goldenseal, not a nutrient dose obtainable from ordinary foods.
Full safety detail.
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
13- 1Impact of Berberine or Berberine Combination Products on Lipoprotein, Triglyceride and Biological Safety Marker Concentrations in Patients with Hyperlipidemia: A Systematic Review and Meta-AnalysisPMIDHernandez AV, Hwang J, Nasreen I et al. · Journal of dietary supplements · 2024
Hernandez AV, Hwang J, Nasreen I et al.. Impact of Berberine or Berberine Combination Products on Lipoprotein, Triglyceride and Biological Safety Marker Concentrations in Patients with Hyperlipidemia: A Systematic Review and Meta-Analysis. Journal of dietary supplements. 2024
- 2The Effect of Berberine Supplementation on Glycemic Control and Inflammatory Biomarkers in Metabolic Disorders: An Umbrella Meta-analysis of Randomized Controlled TrialsPMIDNazari A, Ghotbabadi ZR, Kazemi KS et al. · Clinical therapeutics · 2024
Nazari A, Ghotbabadi ZR, Kazemi KS et al.. The Effect of Berberine Supplementation on Glycemic Control and Inflammatory Biomarkers in Metabolic Disorders: An Umbrella Meta-analysis of Randomized Controlled Trials. Clinical therapeutics. 2024
- 3The clinical efficacy and safety of berberine in the treatment of non-alcoholic fatty liver disease: a meta-analysis and systematic reviewPMIDNie Q, Li M, Huang C et al. · Journal of translational medicine · 2024
Nie Q, Li M, Huang C et al.. The clinical efficacy and safety of berberine in the treatment of non-alcoholic fatty liver disease: a meta-analysis and systematic review. Journal of translational medicine. 2024
- 4Berberine as adjuvant therapy for treating reduced fertility potential in women with polycystic ovary syndrome: A meta-analysis of randomized controlled trialsPMIDHa S, Song X · Explore (New York, N.Y.) · 2024
Ha S, Song X. Berberine as adjuvant therapy for treating reduced fertility potential in women with polycystic ovary syndrome: A meta-analysis of randomized controlled trials. Explore (New York, N.Y.). 2024
- 5Effects of administering berberine alone or in combination on type 2 diabetes mellitus: a systematic review and meta-analysisPMIDWang J, Bi C, Xi H et al. · Frontiers in pharmacology · 2024
Wang J, Bi C, Xi H et al.. Effects of administering berberine alone or in combination on type 2 diabetes mellitus: a systematic review and meta-analysis. Frontiers in pharmacology. 2024
- 6Glucose-lowering effect of berberine on type 2 diabetes: A systematic review and meta-analysisPMIDAsbaghi O et al. · Complement Ther Med · 2023
Meta-analysis of 37 studies (3,048 patients) showed berberine reduced FPG by 0.82 mmol/L, HbA1c by 0.63%, and 2hPBG by 1.16 mmol/L.
- 7Overall and Sex-Specific Effect of Berberine for the Treatment of Dyslipidemia in Adults: A Systematic Review and Meta-Analysis of Randomized Placebo-Controlled TrialsPMIDZamani M et al. · Phytother Res · 2023
Berberine reduced LDL-C by 0.46 mmol/L, TC by 0.48 mmol/L, and TG by 0.34 mmol/L; sex-specific differences were noted for HDL effects.
- 8Efficacy and safety of berberine for several cardiovascular diseases: A systematic review and meta-analysis of randomized controlled trialsPMIDYang L, Zhu W, Zhang X et al. · Phytomedicine : international journal of phytotherapy and phytopharmacology · 2023
Yang L, Zhu W, Zhang X et al.. Efficacy and safety of berberine for several cardiovascular diseases: A systematic review and meta-analysis of randomized controlled trials. Phytomedicine : international journal of phytotherapy and phytopharmacology. 2023
- 9Efficacy and Safety of Berberine Alone for Several Metabolic Disorders: A Systematic Review and Meta-Analysis of Randomized Clinical TrialsPMIDYe Y et al. · Front Pharmacol · 2021
Berberine alone significantly reduced FPG, 2hPBG, and improved lipid profiles with no serious adverse effects reported.
- 10Berberine for weight loss: a systematic review and meta-analysisXiong P, Niu L, Talaei S et al. · Phytother Res · 2020
- 11Efficacy of berberine in patients with type 2 diabetes mellitus: a meta-analysisLiang Y, Xu X, Yin M et al. · Sci Rep · 2019
- 12Effects of berberine on non-alcoholic fatty liver disease: a systematic review and meta-analysisWei X, Wang C, Hao S et al. · Complement Ther Med · 2016
- 13The effects of berberine on blood lipids: a systemic review and meta-analysis of randomized controlled trialsPMIDDong H et al. · Planta Med · 2013
Berberine produces significant reductions in total cholesterol, triglycerides, and LDL cholesterol with a notable increase in HDL cholesterol.
Randomized controlled trials
3- 14Gut microbiome-related effects of berberine and probiotics on type 2 diabetes (the PREMOTE study)PMIDZhang Y et al. · Nat Commun · 2020
Berberine shifted gut microbiota composition, promoting beneficial bacteria while reducing harmful species; gut bacteria convert berberine into bioactive metabolites.
- 15Efficacy of berberine in patients with type 2 diabetes mellitusPMIDYin J et al. · Metabolism · 2008
Berberine activates AMPK and has glucose-lowering efficacy comparable to metformin in type 2 diabetes patients.
- 16Berberine improves dyslipidemia in type 2 diabetes: a randomized controlled trialZhang Y, Li X, Zou D et al. · J Clin Endocrinol Metab · 2008
Reviews & position papers
2- 17Berberine and health outcomes: An umbrella review.PMIDLi Z, Wang Y, Xu Q et al. · Phytotherapy Research · 2023
An umbrella review confirmed berberine's benefits for glycemic control, lipid profiles, and blood pressure across multiple conditions with good safety profile.
- 18The effect of berberine on the gut microbiota: a systematic reviewWang Y, Tong Q, Shou JW et al. · Fitoterapia · 2020
Mechanistic & preclinical
1- 19Berberine and its more biologically available derivative, dihydroberberine, inhibit mitochondrial respiratory complex ITurner N, Li JY, Gosby A et al. · Diabetes · 2008
Reference material
2- 20Guo J, Chen H, Zhang X et al.. The Effect of Berberine on Metabolic Profiles in Type 2 Diabetic Patients: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Oxidative medicine and cellular longevity. 2021Source linkedPMID
- 21Asbaghi O, Ghanbari N, Shekari M et al.. The effect of berberine supplementation on obesity parameters, inflammation and liver function enzymes: A systematic review and meta-analysis of randomized controlled trials. Clinical nutrition ESPEN. 2020Source linkedPMID
Common questions.
Quick answers about Berberine, drawn from the data on this page.
What is Berberine?
Plant alkaloid with remarkable metabolic effects, often compared to metformin. Potent for blood sugar management, cholesterol, and gut health.
What is Berberine used for?
Commonly cited benefits of Berberine include: Blood sugar management; Cholesterol support; Gut health; Weight management; AMPK activation. NutriStack rates the overall evidence as strong.
What is a typical dose of Berberine?
A typical adult dose of Berberine is 500 mg 2-3x daily (with meals). The commonly recommended form is Berberine HCl or dihydroberberine (better bioavailability). These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Berberine?
Reported side effects include gi cramping, diarrhea, constipation, flatulence. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Berberine?
NutriStack rates this as Strong, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Deep dives & adjacent profiles.
This page is educational. Do not start, stop, or change a supplement or medication based on it without checking with a qualified healthcare professional.
Use this with your stack
Berberine in NutriStack.
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