Research
Berberine Research
Plain-language summaries of the published berberine research. Every summary links to its primary sources, and we never present popularity as evidence.
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Berberine and Blood Pressure
What randomized-trial meta-analyses report about berberine and blood pressure, including a possible add-on effect, a null placebo-controlled finding, and the safety signals observed.
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Berberine and Cholesterol
What meta-analyses of randomized trials report about oral berberine and blood lipids, including total cholesterol, LDL cholesterol, and triglycerides, along with the limits of the evidence.
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Berberine and Fatty Liver
What randomized-trial meta-analyses report about berberine and markers of non-alcoholic fatty liver disease, including liver enzymes and tolerability.
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Berberine and Gut Health
What narrative reviews report about berberine and the gut microbiome, including modulation of gut microbiota composition and the role of berberine's low oral bioavailability, with the important caveat that most evidence is preclinical.
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Berberine and PCOS
An evidence-first look at what randomized trials and reviews report about berberine in women with polycystic ovary syndrome (PCOS), covering ovulation, insulin resistance, and the limits of the current research.
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Berberine and Weight Loss
What randomized-controlled-trial meta-analyses report about berberine and weight loss: modest average reductions in body weight, BMI and waist circumference, why the 'natural Ozempic' label oversells the evidence, and the dose ranges studied.
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Berberine Dosage
What randomized-trial meta-analyses report about the berberine doses studied, including the amounts used and how effects tracked with dose and duration.
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Berberine Side Effects
What human research reports about berberine side effects, focusing on gastrointestinal symptoms, pooled liver-enzyme findings, and limits of the current evidence.
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Berberine vs Metformin
A neutral, evidence-first look at how berberine compares with metformin for glucose and lipid measures, based on a systematic review and meta-analysis of randomized trials in women with polycystic ovary syndrome and insulin resistance.
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Berberine and Fasting Glucose in Type 2 Diabetes
In adults with type 2 diabetes, pooled randomized-trial evidence suggests berberine may be associated with lower fasting blood glucose, although the underlying trials are limited.