Junk food. The dreaded j-word. Some critics have argued that processed snack foods, no matter how they are reformulated, even if their levels of fat and calories have been diminished, are still essentially junk foods—with little nutritive value and great expendability in an age of rising obesity. Furthermore, these critics maintain that snack food manufacturers have a lot of chutzpah, in light of the amount of money they spend on marketing their conventional snacks, to suggest that reformulated …