Keto Advanced want to label foods as good or bad yes if you ate only pop-tarts that would be bad for you but a pop-tart in out 2 800 that's your maintenance calories if you want to be in a deficit and start losing weight 200 times 10 is about 2 000 calories so here's the point when you go back to that 300 pound patient you take a 300 pound patient who should technically be eating 36 to 4 000 calories a day for maintenance and now you tell them to get on a 1200 calorie diet you've reduced their weight you've reduced their calorie intake significantly to about a third or less than what it should be they will lose some weight initially but then they go through metabolic adaptation and now they've adapted to 1200 calories and they're stuck there and you can't really lower it if you were more reasonable and told them just take your weight times 10 which is 3 000 calories they're still in a huge deficit because they're used to eating maybe
https://doznutrition.com/keto-advanced/