Do you mean the few studies coming from the Weston A Price Foundation reverberated by thousands of paleo-fad blogs/books? The ones that have been refuted over and over by the real experts?
Despite all the headlines telling you that bacon is healthy, the lipid hypothesis is still the scientific consensus: http://en.wikipedia.org/wiki/Lipid_hypothesis#Widespread_acc...
>> I would add that meat is often eaten in upper classes meals. Meat is a luxury for the better part of our population.
That's simply not true. I'm originally from Brazil and eating meat is not an upper class thing. Animal products are consumed in luxurious gated communities and in favelas alike. It's part of the culture. Unless you're below the poverty line you eat meat daily in Brazil. And those below the poverty line are not the ones dying from heart disease.