这一点也不健康。
另一些则长得很小,也不健康。
一个系统不健康会导致身体其余系统也不健康。
Ill health of one system creates ill health in the rest of the body.
It can come from animal sources and from vegetable sources, and the two have different impacts on health.
它可能来自动物,也可能来自植物,这两种对健康的影响各不相同
Even if they're given healthy food at the same time, they'll tend to ignore the healthy food and eat a diet like this.
即使同时给它们喂食健康食品,它们也会选择前者的食物,而不吃健康食品
Given these relationships between diet and health -you've got too few calories are bad, too many calories are bad, too much fat is bad, other things are good-- then, what should people eat?
考虑到饮食和健康的密切关系,比如热量摄入过低不健康,摄入过高也不健康,脂肪过多不健康,还有些东西是健康的,那么,人们到底应该吃什么呢
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