Free sugars are the most important dietary cause of dental caries.1 ,2 When consumed as a drink, fructose derived from fruit is as likely to cause dental caries as all other sugars.3 In the 2012 Children's Local Dental Health Survey, 28% of children aged 5 years in England had obvious decay in their primary teeth, rising to 35% of children aged 5 years in the North West.4 In 2013, 12% of children aged 3 years had experienced obvious dental decay.5 Dental decay is the most common reason for...