I would actually argue that "stuffing my face" with 2 A&W lettuce wrapped uncle burgers (sandwich only, no combo) is healthier than having one regular mama burger with fries, lots of ketchup and a half litre of coke (or whatever sugary drink you prefer).
(This is the keto vs. regular diet example from before and showcases exactly what I was saying. You attribute value to one particular diet, while I might have another, ideal, healthy diet in my mind. After said 2 uncle burgers I don't have to eat again for a _very_ long time. On keto I've gone without eating for a day easy without feeling hundry, while I'd want an early dinner after the other option mentioned for lunch because my stomach is aching for more food)