Normally dieting shouldn't be necessary to maintain healthy weight though? One could eat a whole lot of salad (with some serious dressing) and a piece of meat and even a little starchy side (some potatoes or similar) 3 times a day and not gain weight. Throw in some regular moderate exercise and you're golden.

Granted, once you go past middle age, it can become a bit more complicated.

Someone brought up doughnuts as an example, but that's a ridiculous source of calories: I could probably down half a dozen doughnuts (a daily calorie budget) and then go for a normal meal afterwards.

Eating only becomes disordered if one can't be bothered to eat healthy food as a rule and then freaks out about weight gain as a result.