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City diets leave distinct microbial signatures in the human gut, study finds

HUBEI, CHINA, JUL 23 – Scientists at BGI Genomics found distinct gut bacteria patterns linked to local diets in Wuhan and Shiyan, achieving 94% accuracy in predicting residency from microbiome data.

Summary by Medical Xpress
A new study shows that the human gut microbiota can pinpoint whether an adult lives in Wuhan or Shiyan, two cities 500 km apart in China's Hubei Province, with 94% accuracy. This microbial signature is strongly linked to each city's characteristic diet.

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Medical Xpress broke the news in on Wednesday, July 23, 2025.
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