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1 .This is Scientific American 60-Second Health. I'm Dina Fine Maron. Got a minute?
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2 .Inside our guts is a diverse ecosystem of bacteria: the microbiome.
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3 .But the makeup of the community can depend on what we eat.
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4 .Emulsifiers are food additives that extend the shelf life of processed foods.
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5 .And now research with mice finds that consuming emulsifiers may throw off the microbiome's delicate balance and thereby contribute to obesity and inflammatory bowel disease.
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6 .In the study, mice were fed doses of common emulsifiers in their water and mouse chow.
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7 .The substances appeared to make it easier for gut bacteria to chew through the layers of mucus that typically line the intestine.
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8 .The result was the triggering of chronic colitis in mice with impaired immune systems that predispose them to the condition.
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9 .And even in mice with normal immune systems, emulsifier consumption appeared to trigger mild intestinal inflammation.
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10 .These mice then tended to overeat and become obese and insulin resistant.
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11 .The study is in the journal Nature.
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12 .Could emulsifiers cause the same health consequences in humans and be behind some of the obesity trend?
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13 .The researchers hope to find out in future studies.
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14 .If nothing else, they write that their new finding suggests that there should be improved testing on the total health effects of chemicals in our food.
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15 .Thanks for the minute, for Scientific American 60-Second Health. I'm Dina Fine Maron.
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