Nestle to slash sugar in UK chocolate bars

Nestle has announced it will reduce by 10 per cent the amount of sugar contained in chocolate bars sold in the UK.

Some of the UK's favourite chocolate bars will contain 10 per cent less sugar by 2018. (AAP)

Some of the UK's favourite chocolate bars - including Kit Kats - will contain 10 per cent less sugar by 2018, Nestle has announced.

The confectioner said around 7,500 tonnes of sugar will be removed across a number of well-known brands using a range of methods and initiatives.

The sugar will be replaced with higher quantities of other existing ingredients or other, non-artificial ingredients.

Products will also be kept below a certain amount of calories.

"These innovations will help us to reduce sugar in confectionery when they are combined with other, more common methods like reformulating recipes and swapping sugar for other, non-artificial ingredients," said Fiona Kendrick, Chairman and CEO of Nestle UK and Ireland.

"Making these improvements to our products is key to us delivering better choices for our consumers while retaining the same great taste that they know and love."