Chicago Public Schools are moving to remove junk food from vending machines located on their premises.

Carbonated soft drinks and snacks high in sugar or fat will be banned in a bid to help pupils make more nutritious food choices and prevent overweight and obesity. An exclusive contract with Coca-Cola is soon to expire, and district officials are looking to replace it with a deal restricted to 100% fruit juices in elementary schools and at least 50% fruit juice in high schools, reported Reuters Health. Water and non-carbonated sports drinks are also deemed acceptable.

Snacks will have to derive less than 30% of their calories from fat and no more than 40% from sugar, while there would be a total ban on chewing gum and candy, the report continues.

It is hoped the new policy will be in force by the coming autumn. School authorities in New York City and Los Angeles have already adopted similar policies.