Thank you for pointing at the elephant in the room Choco.
These kinds of sensationalist posts you refer too (not just the ones related to calories) have personally made me pretty cynical of these forums to the point where I don't really like to read and post here much any more. The few times I've kindly remarked that people struggling with weight loss should consider counting calories have almost always been met with hostility and disregard... and I'm thinking, hey, YOU asked buddy. Meanwhile, people continue the circle jerk playing House MD, throwing out things like insulin resistance, leptin resistance, toxins, thyroids, metabolic advantage, fungi... I don't even know what else. God forbid anyone actually asks themselves if the most simple and common explanation of stalled weight loss might be the problem - that you're just eating too much.
And is it such a ridiculous idea to test? I mean, lets pretend that I think I have some kind thyroid problem making me unable to lose weight. I think the best thing I could do is actually determine if reducing my calories doesn't do anything. If I start magically losing weight when I actually track my intake and controlling portions, great! Problem solved. I don't have some rare medical disorder. Prescription: cool it on the nut butter.
Alternatively... if I do cut my kcal intake to 1200 a day, don't lose any weight after a month, and feel like sh*t. Then yea, maybe I have a serious medical problem that i'd be justified in investigating. Here's the thing - problems like celiacs disease and hyperthyroidism are very serious and should NOT BE TAKEN LIGHTLY. People who legitimately have these problems often have to work very hard to resolve them or control them... and I guarantee that having a six pack is the last thing on their mind - they just want to feel good and not worry about dying. I think there's a saying in business that goes something like...always try the easiest solution first, right? Why fix a problem with a complicated solution when you can just do it with a simple one.
There are days when I don't feel like going to work, but I'm not thinking my feelings are the result of some crazy medical disorder that makes me hate going to work... I mean, sometimes I just gotta suck it up and get there, accepting that my brain isn't perfect. It's the same with exercise. We all love to do it and understand how good it is for us, but I'd be lying if I said there weren't some days I was thinking about my work out for the day and thinking "man, f this, I just want to sit on the couch and drink a beer." Is it so crazy to think that hey, maybe the same thing applies to diet too. Maybe if I want to achieve that lean fight club Brad Pitt body... I just need some good old fashioned self control and work ethic.
People idealize the concept of "Grok" way too much here. Grok is only the result of millions of years of natural selection... that he was able to live long enough to reproduce and not go extinct. And this concept is no different today. Humans and fatter and sicker than ever, yet as a species we are thriving more than ever before, and continue to grow exponentially. Natural selection isn't some Godly, intelligent force. It's arbitrary, and far from "perfect." Grok didn't live in a panacea where he ate a nutritionally perfect spread that caused his body to look like Martin Berkham's. Even if that were true, Grok wouldn't want to be six pack lean, because that means if there was ever a time when he couldn't eat, he would be screwed.
The best approach, in my opinion, is to use Grok as a basic framework of understanding how humans evolved to best thrive on certain nutritional and environmental factors that were present for most of their history. Then, we want to integrate modern science and knowledge into that framework to give us the best possible tools to achieve our goals. Primal for me doesn't mean I want to regress back to being a caveman. Sorry.
Man... I've been wanting to say that for a while. Feels good.
P.S. - the "metabolic advantage" theory has been disproved... time and time again, and there is not one ward based calorically controlled study, not ONE, that shows a group will lose weight while another does not, while they both eat the same number of overall calories. Anthony Colpo is perhaps the leading expert on this type of research, and he thoroughly slays this theory here, with plenty of citations to back it up:
http://www.thefatlossbible.net/They_Are_All_Mad.pdf
Am I wrong? Then show me a study that does. Show me a study in which two groups eat the exact same number of daily calories where one group loses or gains weight, and the other does not. The burden of proof is on you. Good luck with that - because there are none.