来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学第5集第5集》

as you know, by energy balance.

体重是通过能量平衡进行调节的
It's calories in and calories out.

就是卡路里的摄入和消耗
Calories as we mentioned before

像之前所提到的一样
are just a measure of energy,

卡路里仅仅是衡量能量的一种方式
the unit of energy.

能量的计量单位
If energy intake is different than the energy expenditure

如果能量摄入和能量消耗不同
the difference is felt more or less--

差异就表现为
most often in the body fat stores

主要体现在机体脂肪储存的增减
and that determines whether people lose or gain weight,

从而决定了体重的增减
and as you can imagine,

可想而知
energy balance is affected in the following way:

能量的平衡可以受以下几个方面影响
if intake is less then expenditure weight loss occurs,

如果摄入少于消耗体重就会减轻