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ResearchRSSFriday, May 1, 2026 · May 1, 2026

Study finds probiotic no better than placebo for Parkinson’s anxiety

WHY IT MATTERS

If probiotics could help with cognitive symptoms in Parkinson's disease, it might offer a simple, accessible option alongside standard treatments—but this trial suggests anxiety relief isn't one of those benefits.

Researchers tested whether a probiotic supplement could help reduce anxiety in people with Parkinson's disease. The supplement did not work better than a placebo (a fake pill) for anxiety. However, people who took the supplement did show some improvement in thinking and memory tests, though researchers said this result needs more study before drawing conclusions.

A small clinical trial testing whether a probiotic supplement could ease anxiety in people with Parkinson’s disease found that it was no better than a placebo. However, patients given the supplement showed significant improvements on cognitive tests compared with those given the placebo. The researchers cautioned that this finding should be interpreted cautiously, and called […] The post Study finds probiotic no better than placebo for Parkinson’s anxiety appeared first on Park

ASK YOUR DOCTOR

Ask your neurologist whether probiotic supplements might be worth trying for cognitive symptoms in Parkinson's, and whether they're safe to take with your current medications.

Find a specialist →Learn more ↗
parkinson's diseaseprobioticsanxietycognitive functionclinical trial

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