托福听力34题评分 托福听力掌握4步听力法快速提升( 三 )


In the study, mice were fed doses of common emulsifiers in their water and mouse chow.
The substances appeared to make it easier for gut bacteria to chew through the layers of mucus that typically line the intestine.
The result was the triggering of chronic colitis in mice with impaired immune systems that predispose them to the condition.
And even in mice with normal immune systems, emulsifier consumption appeared to trigger mild intestinal inflammation.
These mice then tended to overeat and become obese and insulin resistant.
The study is in the journal Nature.
Could emulsifiers cause the same health consequences in humans and be behind some of the obesity trend?
The researchers hope to find out in future studies.
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.


托福听力掌握4步听力法快速提升

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