So to keep it short, I see that many of you here endorse "clean" eating.
However, at the Nutrition section on another website, many people say all that really matters for your goals is either a calorie deficit or calorie surplus, of course with adequate protein.
I have seen results by just counting my calories and not worrying about the "quality" of the food I'm eating.
I want to hear why you guys think eating "clean" is the only way to gain/lose.