What is the recommended dosage for Berberine?

General: 500 mg 2-3x/day with meals; Starting: 500 mg/day and titrate; Metabolic Support: 1,000-1,500 mg/day

What are the side effects of Berberine?

Potential side effects include: Diarrhea, Constipation, Flatulence, Abdominal pain, Potential hypoglycemia (when combined with diabetes medications).

What is berberine and how may it support weight management?

Berberine is an alkaloid found in several plants including goldenseal and barberry. It activates AMP-activated protein kinase (AMPK), an enzyme involved in metabolic regulation. Clinical trials suggest berberine may help improve insulin sensitivity, reduce blood sugar, and support modest improvements in body weight.

What dosage of berberine has been studied in clinical trials?

Most clinical studies have used 900–1,500 mg of berberine per day, divided into two or three doses taken with meals. A common regimen is 500 mg three times daily. Study durations ranged from 8 to 24 weeks.

What are the potential side effects of berberine?

Common side effects include diarrhea, constipation, flatulence, and abdominal pain. Berberine may lower blood sugar and should be used cautiously by individuals on diabetes medications due to hypoglycemia risk. It can interact with drugs metabolized by cytochrome P450 enzymes.

Berberine

fat_metabolism

Also known as: Berberine HCl, Berberine Hydrochloride, Goldenseal Extract, Coptis Extract

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About

A plant alkaloid that activates AMP-activated protein kinase (AMPK), the master metabolic regulator — a mechanism shared with the prescription medication metformin. Meta-analyses of clinical trials demonstrate berberine may support healthy body weight, blood sugar levels, and lipid profiles.

How It Works

Activates AMP-activated protein kinase (AMPK), the master metabolic regulator, in muscle, liver, and adipose tissue — a mechanism shared with metformin. Upregulates insulin receptor expression, improves glucose transporter (GLUT4) translocation, inhibits hepatic gluconeogenesis, and modulates gut microbiota composition (increasing Akkermansia, reducing Firmicutes/Bacteroidetes ratio).

Evidence For Conditions

Condition	Grade	Studies	Participants
Insulin Resistance	A	27	2500	View →
Metabolic Syndrome	A	12	1068	View →
PCOS-Related Weight Management	C	6	400	View →

Side Effects

Diarrhea
Constipation
Flatulence
Abdominal pain
Potential hypoglycemia (when combined with diabetes medications)

Drug & Supplement Interactions

Diabetes medications (may potentiate — hypoglycemia risk)
CYP3A4 substrates (berberine is a CYP3A4 inhibitor)
CYP2D6 substrates
Cyclosporine
Metformin (additive effects)

Always inform your healthcare provider about all supplements you take.

Related Ingredients

Alpha-Lipoic Acid CLA L-Carnitine MCT Oil

Quick Facts

Dosage: General: 500 mg 2-3x/day with meals; Starting: 500 mg/day and titrate; Metabolic_Support: 1,000-1,500 mg/day
Forms: capsule tablet
Natural Sources: Goldenseal, Oregon grape, Barberry, Chinese goldthread (Coptis), Phellodendron
Upper Limit: 1,500 mg/day; GI side effects limit intake; potential drug interactions
Best Time: With meals (reduces GI discomfort and synchronizes with postprandial glucose metabolism)

Evidence Summary

Insulin Resistance A

Metabolic Syndrome A

PCOS-Related Weight Management C

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.