Kids, ages 2-17, ate more yogurt (refrigerated) as a snack-oriented food in 2009 than they did in 2008, but fresh fruit remained the top snack food consumed by this age group, according to The NPD Group. Potato chips, string cheese and prepackaged cheese cubes or shapes, and hard candy also experienced growth in 2009 versus 2008 as snack foods eaten between, with, or instead of meals.