Carbonated drinks are to be banned in Chicago's public schools. Vending machines will be stocked with healthier alternatives in an attempt to combat child obesity.

The Chicago Public Schools announced yesterday that it is looking for bids to sell beverages in over 550 schools in the district. Coca-Cola's exclusive contract to place beverage vending machines in CPS schools for the last five years is due to expire shortly.

The CPS is also looking to ban junk food from its schools. Both changes are set to take place next year.

Prospective bidders will need to show that the beverages they will sell in elementary schools contain 100% fruit juice, while in high schools, juices will have to contain no less than 50% juice.