An anti-obesity initiative launched by Michael Bloomberg, New York’s mayor, to ban the sale of “supersized” sweetened drinks in restaurants, cinemas and stadiums has attracted fierce criticism from the US beverage industry but won praise from public health experts, who are urging others to adopt the model.

Mr Bloomberg’s plan would stop food service establishments selling sugary drinks in portions bigger than 16 ounces (475ml). Diet sodas or drinks containing milk would be exempt, and restaurants could still offer free refills.

New York’s department of health said large portion sizes were contributing to the widening obesity epidemic, pointing to data that show more than half of adult New Yorkers are overweight or obese. The administration said people were consuming bigger soda portions with more “empty” calories but not feeling fuller or less thirsty.