Study Finds Distinct Gut Microbiome Signature Linked to Parkinson’s Across Countries

Overview

• Researchers reported in Nature Medicine a repeatable pattern in the gut microbiome of people with Parkinson’s disease.
• The team analyzed stool from more than 400 participants in Italy and the UK and compared the results with datasets from the United States, South Korea, and Turkey.
• The microbiome signature, found by reading the mix of microbes in stool, could help flag people at higher risk before symptoms appear, though clinical use remains early.
• France’s INRAE said patients who ate a balanced, Mediterranean‑style diet showed fewer gut changes and milder symptoms, suggesting diet may shape disease course.
• Scientists call for replication, longer follow‑up, and trials that test whether changing gut microbes through diet or targeted therapies can alter progression.