I'll throw in a few more that are causing great consternation in our own community, as they are polar opposites. But I think maybe they just misunderstand each other.

1 A fat bomb deficit.
2 A fat bomb surfeit.



I do find increasing fat bombs, or at least increasing the fat to carbs and protein (with carbs mostly gone) more effective for maintenance personally. But just adding fat bombs to whatever I'm already eating never worked. A shot or two of cream instead of another pork chop, not and another pork chop. People abhor fat because "calories do matter to some extent." I willingly concede that, but there's still a fight to be had over which calories to include. Of course protein is special, we need a certain amount a day. Once we get past that, all the stuff about "protein calories are bigger calories"--pull the other one. My food got denser when I went Atkins, denser still when I went keto. I'm not saying some people don't do better with much higher protein than I take in, just that I'm not really buying the idea that tricking yourself by eating moar food with less calories is what's going on.

I think it's possible, even likely, I'd be somewhat leaner if I ate the same calories I eat now, but replaced say 400 calories of fat with 100 grams of protein. Experience tells me I'd better be locked up. I'll be miserable, go to bed hungry, kind of lazy, and probably cheat/binge.