I like Evolutionary Nutrition. In the same way that evolutionary psychology takes what we know about evolution and then formulates a hypothesis with it to attempt to explain human behaviors in a systematic way, that is exactly what we do and should continue to do with nutrition. It goes like:
P1 Organisms adapt to their environments due to natural selection
P2 One major component of an organism's environment is diet
C1 Organisms adapt to diet via natural selection (from P1 and P2)
C1 Organisms adapt to diet via natural selection
P3 Biological adaptation often moves in the direction of health and vitality
C2 Organisms adapt to diet via natural selection in order to obtain better health and vitality from their diets.
C2 Organisms adapt to diet via natural selection in order to obtain better health and vitality from their diets.
P4 It takes time to adapt to an environmental factor
P5 It hasn't been so long since we ate a predominantly hunter-gatherer diet.
C3 Organisms may not have adapted to new environmental factors introduced to them in the near-past in such a way to make them optimal for health and vitality, and thus we are likely best adapted to a hunter-gatherer diet with regards to health and vitality, since a hunter-gatherer diet was the norm for a substantial amount of time and agriculture is a new thing that we might not be biologically adapted to to beget the greatest health and vitality.
Okay last one is a bit messy but it definitely follows. Nowhere is there a contentious assertion since I make sure to use words like "probably" or "likely" instead of an assertion of fact from what is in truth an assumption.
Of course it doesn't follow that any particular element of "what grok did" is necessarily best. Higher carb or lower carb? Some Groks ate more carbs than many around here do. There is no one paleo diet, but there might be an optimal diet. It doesn't follow that a neolithic food is necessarily bad, either. Just because we didn't see it before doesn't mean that we can't be adapted to it. The paleo axiom is only an a priori speculation, and we actually have to test these things with observations if we want to be sure.
But the point is that we have a firm theoretical framework to base our hypotheses and skepticism upon. And that is what evolutionary nutrition is.
I was thinking that what Cordain came out with was Paleo 2.0 since Paleo 1.0 was thousands of years ago, and so this would be 3.0. I just prefer evolutionary medicine, nutrition, etc a lot more. It communicates what we ought to be doing which is making informed hypothesis with a sound theoretical framework.