Yeah but it's meaningless.
The struggle with losing weight comes from difficult to overcome hunger pangs.
Advising people about calorie restriction is the same as advising an alcoholic to just stop drinking. It's easy if you can do it but if you can you wouldn't have a problem to begin with. It is missing the problem entirely.
The good thing about calorie counting is that you can dial in the speed at which you want to lose weight. And then it becomes more about discipline than pushing through hunger.
But yeah, no matter what it is going to require mental effort.
Advising people about calorie restriction is the same as advising an alcoholic to just stop drinking. It's easy if you can do it but if you can you wouldn't have a problem to begin with. It is missing the problem entirely.