Comment by rootusrootus

> I would have thought that it would mostly be because they can't resist that extra snack.

This is a pretty good inadvertent explanation for why a lot of people come into this discussion waving around morality arguments, lack of discipline, etc.

The average person gains a couple pounds a year. Adds up. How many calories do you think that is, amortized throughout the year? I'll help you with the math. It's 19. The average person eats 19 calories per day beyond maintenance.

It's not "weak willed slob cannot resist that extra snack."