Kellogg’s is set to adopt “traffic light” labelling for most of its cereal packaging from early next year after consumers said the colour-coded system helped them choose healthier options.
The food company said the voluntary labels would begin appearing on cereals made exclusively for sale in Britain.
This includes Coco Pops, Crunchy Nut, Corn Flakes, Frosties and Special K from January, with all products changed by early 2020.
Traffic light labels show whether levels of sugar, salt and fat are high, medium or low using red, amber, green traffic light colours.
The system is based on the amount per 100g.
Brexit should be used 'to introduce legislation'
Kellogg’s UK Managing Director Oli Morton said the decision followed a survey of 2,000 Britons, who were asked about their attitudes towards labels.
Mr Morton said: "Put simply, they said we should change and move to a full colour solution as they want help making healthy decisions. We've listened and now we're acting."
Traffic light labelling was officially adopted by the UK Government in 2013, and food companies and retailers have been asked to voluntarily use the system since then.
Earlier this year, consumer group Which? called for mandatory traffic light labelling post-Brexit, warning that inconsistent information on popular adult breakfast cereals could be misleading shoppers about how much sugar, salt and fat they contain.
Its researchers analysed 31 cereals, porridges and granolas and found they could contain more than three quarters of an adult's recommended daily maximum of free sugars in one portion - with the true sugar level not reflected on the packaging.
Sue Davies, Which? strategic policy adviser, said: "While this is a very positive move from Kellogg's, it should apply to all the brand's products sold in the UK and Ireland, not just 80% of them.
"The Government should now use Brexit as an opportunity to introduce legislation that makes traffic light labelling mandatory as part of an approach based on high food standards and aimed at boosting the nation's health and well-being."