Vegetarian diets are much lower in calories than the standard American diet.

素食者饮食比标准美国人的饮食的热量低得多。

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One group was then fed standard fare while another got the high-fat diet.

一组实验小鼠喂养标准食物，另一组喂养高脂肪食物。

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One group was then fed standard fare while another got the high-fat diet.

一组实验小鼠喂养标准食物，另一组喂养高脂肪食物。

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