芹菜提供大量低卡路里饮食纤维素，常常出现在健康饮食的菜单中。

Celery is used in weight-loss diets, where it provides low-calorie dietary fiber bulk.

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消化系统癌症的相关风险可能更多的是饮食问题，即脂肪过多和缺乏纤维素，而不是体重问题。

And the associated risk of cancer in the digestive system may be more of a dietary problem too much fat and a lack of fiber than a weight problem.

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虽然对于他本来的功能还有怀疑，大部分科学家同意达尔文的观点：它原本是帮我我们消化以树叶为主的饮食中的纤维素的。

While its original use is still speculated on, most scientists agree with Darwin’s suggestion that it once helped to process the cellulose found in the leaf-rich diet that we once had.

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Well Jenkins makes the argument that people are eating too much of everything, and that every part of the diet is being over-consumed and--except for things like fiber, which is being under-consumed, but every sort of thing that people should be eating less of is being over-consumed.

詹金斯的观点是,人们是饮食总量过剩,饮食中的每个部分都摄入过剩,除了纤维素--纤维素是摄入不足的,但所有人们应该少吃些的东西,现在都摄入过剩了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选