The Grocery Manufacturers of America yesterday pledged the food industry's continued support to address the nation's obesity problem noting that physical activity must be part of the solution. GMA Director of Scientific and Nutrition Policy Lisa Katic, R.D. was a featured speaker on the panel discussion "Children and Obesity: Who's Gaining Ground" at the 2001 National Food Policy Conference sponsored by the Consumer Federation of America Foundation.  Katic said obesity is a complex issue that demands a focus on both healthy eating and physical activity.