That's the main issue, however you empty the fat cells, they're waiting to refill once you eat more than you did during the diet that emptied them. The added benefit with GLP-1s is they mute the food noise for many people and let you notice sooner when you're full. Take those perks away, if they applied to you, and appetite returns, weighing food turns to eyeballing, you eat more carbs, more fat and bigger portions, and exercise fades. A month without Ozempic for cataract surgeries showed me the same thing (the schedule was 10 days off ahead of each eye, 5 after). Food noise never showed up, yet I sensed fullness later and the appetite suppression faded by month's end. What saved me was keeping up my meal and ingredient prep.