Its potentially physiological. 


There is some science that says that GLP-1 (the hormone that makes you feel hungry) is messed with when you consume fake sugar.  Your tongue and gut sense "sweet" and start preparing for the caloric hit....but there is a mismatch between the calories that actually arrive and your hormones....so you feel hungry and eat more to compensate. 

https://fortune.com/well/2025/04/04/sugar-substitute-may-increase-your-appetite-study/

freetx

I remember a character in one of Isaac Asimov's Black Widower books (his mystery short stories) griping that diet soda would make someone feel virtuous, and as a result they'd eat more during the meal, and they ended up eating more calories as a result.

mostly_harmless

Cigarette filters and other pointless safetyism

Scoresby

I remember a character in one of Isaac Asimov's Black Widower books (his mystery short stories) griping that diet soda would make someone feel virtuous, and as a result they'd eat more during the meal, and they ended up eating more calories as a result. 