The lab animals had more natural microbiomes seeded by wild mice, unlike conventional models that are kept in sterile conditions

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Immigrants’ gut bacteria “westernize” soon after they move to the U.S., which might influence obesity in immigrants and Americans alike

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Microbiome testing companies have become a thing, offering consumers a chance to see a snapshot of the billions of microbes that reside in their bodies. Some promise even more from a swab: personalized advice on how to improve your health

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The womb was thought to be sterile, but some scientists argue that it’s where the microbiome begins

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You are what you eat. But everybody’s different, and everybody should eat differently. Technology can help

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At any given moment, you have somewhere between 10 trillion and 100 trillion microorganisms inhabiting your gut — that’s more microbes in your bowels than there are cells in your body. If that isn’t impressive enough, consider that collectively these microbes have about 150 times as many genes as your own genome

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“Even though you don’t think of gut bacteria being all over you, they kind of are,” said Andrew Moeller, an evolutionary biologist at the University of California, Berkeley and co-author of the paper

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You are not one organism, but a system of trillions. Each groove in the body and all its surfaces are teeming with microbes

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