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This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?

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Everywhere you go, the trillions of microbes in your gut go too.

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And that's a comforting thought.

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Because according to a new study, a more diverse population of intestinal bacteria is linked to better health.

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The work is in the journal Nature.

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Danish researchers gathered gut microbes from almost 300 obese and non-obese adults.

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The intestines of roughly one in four participants contained fewer and less diverse bacteria than average.

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And members of this group were more likely to be obese and to suffer from gut inflammation.

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By looking for only a few specific bacteria, researchers could predict whether a subject fell into the low-diversity group.

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Certain species could even indicate whether an individual was slim or overweight.

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And these microbial markers might also serve as signs of future health risks,

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because low-diversity participants who were obese were more likely to gain additional weight over time.

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But a low-diversity gut won't necessarily doom your health.

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According to another study in the same journal, it's possible to increase microbial diversity by developing a decent diet.

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Remember, you're eating for trillions.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.

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