When it comes to preventing childhood obesity, perhaps the most important area to target is influencing what goes on in the home. Jennifer Orlet Fisher, director of Temple's Family Eating Laboratory at the Center for Obesity Research and Education, will spend the next five years studying how to do that, by working with mothers on simple strategies to promote appropriate food choices and portion sizes. While this study is the first of its kind, it's not the center's first: Gary Foster, director of CORE, has worked with the Food Trust on several programs aimed at improving food options in schools and at corner stores.