Kellogg’s has changed the recipe for the products in its cereal and milk bar range to cut sugar levels.

Coco Pops Bars have been reduced by 24 per cent and Frosties and Rice Krispies Bars by 19 per cent.

As part of the recipe change the cereal and snacks company has also added Vitamin D and extra fibre to these lunchbox favourites.

The company has an ongoing programme to reduce sugar in its food which will see it remove 2,000 tonnes of sugar from the nation’s diet by the end of 2017.

Dr Alexa Hoyland, senior UK nutrition manager, said “This reformulation is part of Kellogg’s commitment to giving people more of what they want and need, like fibre and added vitamins and minerals and less of what they don’t, like salt and sugar.

“We know parents want to give their children tasty snacks that are better nutritionally. That’s why we are reducing the sugar and increasing the fibre whilst keeping the great taste of these bars. We also want to provide opportunities for parents to give their children the vital nutrient, vitamin D, which we know children are not getting enough of.”

According to the National Diet and Nutrition Survey Vitamin D intake in British kids is four times below the recommended amount and children eat 30 per cent less fibre than they need.