Its fascintating to me to see the many arms of the Paleo movement forming. Each with their own CW and biases - from the Perfect Health diet to the Ketogenic approach and everything in between. This sort of reflects the variety of Ancestral diets that evolved over time as people adapted to their environments. Paleolithic cultures in the Arctic, the Americas, Europe, Polynesia and Asia were required to adapt to many enviromental variables and evolved to eat foods that ensured their survival. Animals, pemican, fish, insects, blubber, coconuts, honey, tuber vegetables, nuts or fruit, anything was fair game when facing starvation. Which leads me to the belief that we all need to experiment and find what works best for us as individuals, share best practices and try not to dictate a specific approach.