This idea caught my interest when I was thinking about how the USDA food pyramid makes grains the foundation of a healthy diet. I searched through Google Images and looked at some images of paleo food pyramids.
I was disappointed to say the least...some did not make sense. Some put berries into the same category as nuts, as if berries weren't fruit. One had water as the foundation, but water isn't food (I don't think something that has zero calories can be considered food).
Mark Sisson's Primal Pyramid was my favorite.





