It tends to be that way because, to most people, it's much easier to e.g. forego 100 calories of eating than it is to burn 100 calories through exercise. The e

It tends to be that way because, to most people, it's much easier to e.g. forego 100 calories of eating than it is to burn 100 calories through exercise. The end result, though, is quite similar as far as weight loss is concerned. But weight loss and weight maintenance are different, with the former being a temporary intervention and likely a top life priority for the duration. As far as maintaining weight, this is much more about habits than anything else; many of us (certainly those with weight issues) will tend toward overeating if allowed. Regular mealtimes, recipe planning, and even calorie counting can work to mitigate this tendency. Exercise, too, is often a very important part of this; many find it easier to maintain a target weight while keeping an exercise regimen. Part of it may simply be that those who are disciplined or otherwise able to get regular exercise may also have better eating habits. But I think there is another effect that makes it easier to maintain a calorie balance when you have regular exercise.