It all boils down to 1 simple principal. As long as your food is single ingredient and as close to its natural state as possible, you can pretty much eat as much as you want, stay active, and be perpetually fit. That's it. No specific diet, no real need to even calorie count. No need for non GMO or only organic or any of that shit. Just eat sensibly as defined by those standards and you will be better off.
It is very simple, just not as easy as it should be for a lot of people.
RETS pls
If I ate 4000 "natural" calories I'd become obese after a few months.