为了降低或增加热量，增加食品的量。

To lower or add calories, increase quantity of foods.

youdao

不幸的是，密度的增加还是会增加热量。

Unfortunately, their density also concentrates heat.

youdao

增加热量不能时分子变大，而是使分子间的平均距离增大。

Adding heat does not make the molecules any larger; it makes the average distance between them larger.

youdao

So you could have--be consuming fat that is in itself good for heart health let's say, or maybe protective against cancer in some ways, but it's also adding calories to the diet, so you want to have the optimal amount of fat and not over-consume it because of the calories.

所以你可能是在食用,有益于你心脏健康的脂肪,打个比方,又或是在某种程度上可以抗癌,但它也给你的饮食增加了热量,因此为了减少热量应该食用适量,而非过量的脂肪

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选