Sometimes changing what you eat will determine how much you (want to) eat. Protein, for example, can make you feel fuller. Foods with a high glycemic index will

Sometimes changing what you eat will determine how much you (want to) eat. Protein, for example, can make you feel fuller. Foods with a high glycemic index will affect blood sugar levels (and hence, the body trying to control them and bringing levels too low) and so you may end up feeling very hungry quite soon even though you've had plenty of calories. There's lots of this kind of thing so I'd suggest trying a few different foods and eating strategies to see if anything works for you.