Research review
Does berberine help with anxiety? What the research does and doesn't show
No human trial has tested berberine for anxiety, in either direction. The only research connecting the two is a single 2025 rat study in an induced-colitis model, not a finding about people.
The evidence doesn't support berberine as a treatment for anxiety, and it doesn't support the idea that berberine causes anxiety either. No human trial has tested berberine for anxiety in any population. The one study connecting the two was conducted in rats with chemically induced colitis, not people, and berberine's documented human side effects are gastrointestinal, not psychological.
What the evidence doesn't support
It doesn't support berberine as a treatment for anxiety, panic attacks, generalized anxiety disorder, or any other anxiety-related diagnosis. No human trial has given people berberine and measured anxiety as an outcome, in a general population or in people already diagnosed with an anxiety disorder. It also doesn't support the reverse claim — that taking berberine causes or worsens anxiety. Neither direction has been tested in people.
What the trials found
The only research connecting berberine to anxiety is a single 2025 study in rats, not people. Researchers induced acute colitis in 32 male rats using intrarectal acetic acid, then gave them oral berberine (50 or 100 mg/kg), a comparison anti-inflammatory drug, or saline for seven days. Anxiety-like behavior — a standard rodent behavioral measure, not a human diagnosis or self-report — decreased in a dose-dependent way in the berberine groups, alongside improvements in markers of colon inflammation. That's a finding about inflamed rats at a dose calculated per kilogram of body weight, in a model of intestinal disease, not a finding about anxiety in a healthy person taking a supplement. No human trial has tested whether anything similar happens in people, with or without a gut condition.
Separately, human safety data on berberine — drawn from trials studying it for blood sugar and cholesterol at 900 mg to 1.5 g a day — report gastrointestinal side effects (diarrhea, cramping, nausea) as the main documented issue. A 2026 review of berberine's drug interactions and safety profile doesn't list anxiety, mood changes, or any psychological symptom among its documented effects.
Questions people ask
Can berberine cause anxiety?
No human trial or safety review has reported anxiety as a side effect of berberine. The documented side effects are gastrointestinal — diarrhea, cramping and nausea, most often at doses of 1.5 g a day or higher.
Does berberine cause anxiety?
There's no documented case of this in the human research reviewed here. If you notice new anxiety symptoms after starting any supplement, that's worth mentioning to a doctor, since it could relate to something else entirely.
Does berberine help with anxiety?
No human trial has tested that. The single study connecting berberine to anxiety-like behavior was conducted in rats with an induced gut condition, not in people, and it doesn't establish an effect in humans.
When to talk to a doctor
Anxiety that interferes with daily life, sleep or work is worth raising with a doctor. Berberine is not a treatment for anxiety or any anxiety disorder, and nothing in the evidence above supports using it as a substitute for an evaluation, therapy or medication a doctor might recommend. If you take medication for anxiety or any other condition, or are pregnant or nursing, talk to a doctor before adding any supplement.
Related reading: berberine side effects, berberine benefits: what's established and what isn't, and who should not take berberine.
Sources
- Berberine mitigates colitis-associated neuroinflammation and anxiety through modulation of the AMPK/NURR1 pathway In a 2025 rat study using a chemically induced colitis model, oral berberine reduced anxiety-like behavior and gut inflammation in a dose-dependent way — a finding in diseased rats at a per-kilogram dose, not a human trial.
- Efficacy of berberine in patients with type 2 diabetes mellitus In 36 adults, 1.5 g a day for three months had a blood-sugar effect comparable to metformin; about a third had stomach side effects.
- Berberine-Drug Interactions: Mechanisms, Clinical Relevance and Risk Stratification-A Narrative Review A 2026 review named barberry, Chinese goldthread and goldenseal as berberine's plant sources and found it can raise blood levels of some other drugs even though very little berberine itself reaches the bloodstream.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.