According to the CDC, 74% of all adults and 40% of all children and youth in the U.S. are either overweight or obese. Public Health Prevent. Promote. Protect. Richland County Health Department According to the CDC , 74 % of all adults and 40 % of all children and youth in the U.S. are either overweight or obese . Public Health Prevent . Promote . Protect . Richland County Health Department