Sixty percent of Americans are overweight, and Doctor William Dietz with the Centers for Disease Control and Prevention says too much food and not enough exercise are some of the primary contributors. Dietz spoke at a nutrition summit held primarily in Jefferson City and five satellite locations throughout the state. Dietz says here in Missouri, the diversity of settings such as urban versus rural areas, can pose some challenges when trying to come up with a game plan to solve the obesity problem. Dietz says a large portion of the anti-obesity effort needs to be aimed at children. He says obese children can become even more obese as adults.