[dhedberg]

For me personally I have noticed that exercising helps me by modulating my food cravings.

I'll get hungry of course, but in a way where I'm more happy just eating some reasonable amount of actual food instead of stuffing myself with a bag of crisps or worse.

This might also be psychological; it feels good after exercising so I feel more inclined to stay on the path.

The result, either way, is that while I know from experience that just changing my diet works to lose weight, it becomes a lot easier to keep it up when also exercising.