University Park, Pa. -- A Penn State analysis of the diets of a nationally representative sample of U.S. preschoolers, ages 2 to 5, shows that more than three-quarters of the children are not getting enough fiber. Children who consumed the most fiber also had the most nutrient-rich diets. However, all children in the study ate fewer dairy servings than recommended by the Food Guide Pyramid. "There is clinical evidence that children with low fiber intakes are at risk of chronic constipation," said Sibylle Kranz, assistant professor of nutritional sciences who led the study. "However, there are also other reasons to...