There are so many people who are really trying, but are failing through no fault of their own. And primal/paleo living may be popular in some areas, but it's a total unknown in my circle of friends and family. I only found out about it because it was mentioned on a recipe blog I followed. But everyone and their brother and neighbor is on weight watchers or Atkins. These are 'reputable'plans that people really do think they work. That's because these companies spend millions of dollars in advertising and are approved by many doctors. The odds are stacked against people successfully losing weight and maintaining the loss in a sustainable, long term way that's healthy.