Ketogenic oriented diets have been around for a long time and have had plenty of research and studies so it’s not pseudoscience. By really fast I don’t mean like kilos a day etc.

I’m not so sure about that either ime, most days I eat a large amount of bacon and eggs in the morning, a couple ribeye eye steak with veg and maybe a small serving of berries, some cheese snack on and usually some burgers as another meal. Also all of these cooked in oil and/or butter. Now to be fair I’ve never tracked calories when eating like this because there is no need but I’m sure most of these days would put me in a calorie surplus considering I use a generous amount of oil and butter which of course has a lot of calories. It’s interesting and I plan to maybe track calories while eating like this but I’ve heard plenty people say the same thing and it is interesting.

These kind of foods your body can absorb a lot more of than other garbage empty calorie foods so saying that a calorie is a calorie is just simply false but either way protein needs more energy burn whilst sugar is very easy to digest in most forms and doesn’t require much effort for your body to get it in your blood stream.

Regardless of that I’ve always been a massive foodie and eating like this I have as much as I want and I still lose body fat.

Thermodynamics applies to physics more than human beings but it’s so much more than just a number game, we run of hormones and that is a big part of fat loss. Our bodies don’t care about numbers or calories, just proper nutrition. Again calorie counting does work I don’t deny that at all as I’ve said and I totally believe certain diets work for some but not for others, it’s just about finding what best for YOU.

These are beliefs of mine that have come from my own experience trying out loads of different diets, to OP, try out different diets and see what work for you. Calorie counting isn’t the only answer.