Every time there's a study that claims that meat will kill us and that a vegan diet will save us Denise Minger and others are quick to point out the fatal flaw that correlation and causality are two very different things. I.e. getting rid of meat wasn't the salvation, it was getting rid of the crap carbs, bad fats, and processed foods that restored people's health.
Are we in the Paleo world guilty of doing what we accuse others of doing? I no doubt do much better with real food and I eat plenty of meat and fat but I'm not so sure that, for many of us, it's about completely or mostly avoiding the grains and legumes. Sure, some of us don't do well with grains and other neolithic foods and really need to avoid them. But, I wonder how many of us are healthier because we found the religion of real food not because we went Paleo.