Are there any common side effects associated with berberine supplements?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Berberine supplements may cause side effects, most commonly gastrointestinal issues such as stomach upset, diarrhea, constipation, gas, and cramping. Less frequently, berberine can lead to headaches, low blood pressure, or interact with medications like blood thinners and diabetes drugs. Side effects are often dose-dependent, so lower doses may reduce discomfort.

If you're experiencing symptoms after taking berberine—or wondering whether your symptoms are related to a supplement, medication, or an underlying condition—it's worth getting clarity before guessing. A free, instant symptom check can help you understand what may be causing your symptoms and guide you toward the right next steps, whether that's adjusting your routine or speaking with a healthcare provider.

Reviewed for medical accuracy: 07/20/2026

Important Next Steps

Discover if berberine side effects need care Learn likely causes of your berberine symptoms See how serious your berberine side effects are Find OTC relief for berberine side effects Find doctors for berberine-related symptoms Understand home remedies for berberine side effects Check if berberine symptoms need urgent care

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Explanation

Berberine is a supplement that some people take for various health benefits. However, it can have some side effects. Some people who take berberine might experience stomach issues. These can include an upset stomach or diarrhea.

Common Side Effects

Stomach Upset: This can mean feeling uncomfortable in the stomach area.
Diarrhea: This means having loose or watery bowel movements.

If you are thinking about taking berberine, it is a good idea to be aware of these possible side effects. Everyone's body is different, so not everyone will have these issues. If you're experiencing unusual symptoms and want to understand what might be causing them, try our free symptom checker to get personalized insights. If you have any concerns, it is always best to talk to a healthcare professional.

(References)

Li Z, Wang Y, Xu Q, Ma J, Li X, Yan J, et al. (2023). Berberine and health outcomes: An umbrella review. Phytotherapy research : PTR, 36999891.
Blais JE, Huang X, & Zhao JV. (2023). Overall and Sex-Specific Effect of Berberine for the .... Drugs, 36941490.
Di Pierro F, Bertuccioli A, Giuberti R, Saponara M, & Ivaldi L. (2020). Role of a berberine-based nutritional supplement in .... Minerva gastroenterologica e dietologica, 32283882.

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