I like this quote-"...Carbs and insulin are certainly factors, but not in the way we have classically viewed them. With proper vitamin D levels, activity, and in the absence of gut irritating proteins* carbohydrates as a food class may not be damnable. BUT! And please take fracking note of this: if you have a systemic inflammatory condition (most modern folks do), a low-carb paleo diet is likely the best thing you could possibly do to dial down the fires within and get on the road to healing..."
Let's just say he's right. This explains a lot. It certainly explains why a lot of us dealing with a system crash cling to low carb, and so do the drs treating us.
I think the Paleo folks re-discovering carbs lately are, for the most part, not coming from such a damaged starting point.