Is it the hunger?

是因为饥饿感吗
Do you just want to eat all the time or do you want to eat more often?

你是否总想吃东西或想多吃几次
Or are you eating at regular times

又或者你是在正常的时间进食
but you're just having trouble eating

但是你却不能按照
as much as you think you should

预期的食量进食
and you overdo it and there could be combinations of these things.

你也许会摄入过多或者几种问题都存在
That's one interesting broad cut at this whole issue.

内容十分宽泛这只是其中一角
There are things that affect all of these.

有很多因素都能够对饮食产生影响
For example, hunger, the biological experience of hunger,

例如饥饿对饥饿的生物学体验
will affect both meal initiation and meal size.

会影响进食的开始和进食量
The appetite, which is what a person's desire

食欲即个人对的进食的期望
is for particular nutrients or particular foods,

是为了获得特定的营养或食物