Childhood obesity. Requires the department of education to develop: (1) recommendations for school corporation nutritional policies and curricula; and (2) model policies for the measurement of student body mass indexes. Prohibits vending machines at elementary schools from being accessible to students. Requires that healthy foods and beverages account for 50% of the food and beverage sales in middle and high schools. Requires school corporations to adopt nutritional integrity policies. Requires 30 minutes of daily physical activity for elementary school students in public schools. Allows a school to continue a vending machine contract in existence before April 1, 2004.