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The original was posted on /r/science by /u/mvea on 2024-11-20 19:42:06+00:00.

Original Title: Your friends shape your microbiome — and so do their friends. The more people interact, the more similar the make-up of their gut microbiome is. People living in the same house share up to 13.9% but even people who don’t share a roof but habitually spend free time together share 10%.