I think that part of it involves socioeconomic status, as well as our tendency to be uneducated when it comes to eating habits, and rather glutinous in spirit as well. We have grown up hearing kinda, "the more the better". Plus there is a ridiculous red meat culture in our society created back in the 1950s. I think there needs to be more nutrition education, and I think healthy foods need to become more affordable as well.