The University of Aberdeen proved that ONLY FAT MAKES YOU FAT in 2018 in a huge study on mice (the ONLY semi-argument you could make against the study, it was top notch).

>“However, mice have lots of similarities to humans in their physiology and metabolism and we are never going to do studies where the diets of humans are controlled in the same way for such long periods.

The discussion is pretty much over, hence the study was almost completely ignored on the internet. That's the internet for you.
>“The result of this enormous study was unequivocal. The only thing that made the mice get fat was eating more fat in their diets.”
>The research revealed that increasing carbohydrates had no effect on their weight, while diets combining sugar with fat were no more effective than fat on its own.
>“These effects of dietary fat seemed to be because uniquely fat in the diet stimulated the reward centres in the brain, stimulating greater intake.”

Again: The problems is solved and the discussion is over. The only question is whether you want to accept the facts or not. Americans BTFO as usual.

https://neurosciencenews.com/fat-consumption-weight-gain-9573/
https://www.abdn.ac.uk/news/12079/