Expanding on the theme of unexpected benefits, I think that one of the things that makes weightlifting helpful for weight loss is causing cognitive dissonance when eating crap. Since the first increases in what you can lift come from increased inter- and intramuscular coordination and are thus very rapid and really astounding, you can quickly get a feeling of agency and the belief that you are becoming a sporty person. Both will help you make better food choices.

^ this. I've done a lot of research/experimentation/thinking about keto, and this is definitely one of the factors. Along with the increased satiety from higher dietary fat, higher TEF from increased protein, improved insulin sensitivity (less hunger crashes), etc, of course. :)