To encourage child nutrition and healthier school lunches, state Agriculture Commissioner James Comer visited six Kentucky school districts earlier this week. He met with school boards in Owsley, Jackson, Knox, Marion and Metcalfe counties, and visited Green County High School, according to a news release from his office. Many Kentucky children consume more than half of their daily calories at schools. During a typical school day, 4 in 10 American students buy and eat snack foods and drinks, the Pew Health Group found. More than 23 million children and teens in the U.S. are overweight or obese.