I've just returned from the cinema, where I ate a large popcorn and a large drink. This equated to about 1200 calories. I do not feel full at all. However, for lunch I had chicken, potatoes and vegetables, which equated to about 800 calories. Afterwards, I felt very full. I did not have breakfast this morning or snack during the day, nor did I exercise substantially during the day.
Why is it that food with more calories can seemingly make you feel less full than food with fewer calories?