One of the biggest problems is that such talk about "lifestyle interventions" usually comes with a motivation killing lack of empathy and the treatment model clearly doesn't work for everyone, be it because they can't starve off hunger with it or it simply doesn't work despite adherence. It doesn't really matter, the diet failure rate speaks for itself.

I've experimented a lot with my diet and slowly figured out which food combinations work and do not work for me. And it is much less intuitive than anyone would assume. I used to eat a certain kind of junk food that is on the "definitely bad for you" list and I would always lose weight on it. I know it's still bad in other ways, but it made me question why I was trying so hard and still failing, while some junk food made it effortless.

It's something that the "calories in calories out" crowd really loves to dismiss outright.