Raes says that there are plenty of studies in mice showing that diet can alter gut bacteria.
Raes说，大量在小鼠中进行的实验证明，饮食习惯可以改变肠道细菌。
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Raes is currently looking into this in greater detail in a study of 100 people, to see if any strong links emerge.
Raes正在进行一份有更多细节的包含100人样本的研究，来寻找是否有某些确定的联系。
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"We found that people from Japan and France, for example, might have ecosystems more similar to one another than to those of their compatriots, even though they have very different diets," says Raes.