Imagine two people, "Liz" and "Andre," sitting down for dinner in their favorite restaurant.The restaurant happens to be located in a charming older neighborhood in one of the nation's larger cities, but it could be almost anywhere. 1"I really love this place," Liz says to Andre."Yes," says Andre, "you can see signs of care and affection everywhere you look."Glancing around, they notice that many nearby people appear to be overweight, and this causes Andre to comment about a newspaper article he had recently read about the relationship between diet and health.Andre asks, "What are you going to have to eat?" "Maybe the pork dinner," Liz replies."It's my favorite."1 Liz and Andre are a fictional couple who stand for the sixty-five percent of U.S. Americans who live in the nation's 100 largest metropolitan regions.