Cadbury chocolate bars could get smaller because of Brexit, the company’s UK head has said.

The alternative would be to see the price rise, Glenn Caton has told the Guardian.

However, the company will remain in Britain, upholding the country’s tradition as the home of chocolate making.

Increasing the cost or cutting the size of bars - a tactic known as “shrinkflation” - is seen as preferable to compromising on the quality of the product.