
The price of some of the most popular branded food products have as much as doubled in the last two years, research has found.
Heinz Tomato Ketchup saw the biggest average percentage increase overall, with its 460g top-down version increasing by 53% or 91p across six major supermarkets – although this reached 70% or £1.06 in one particular supermarket over the two-year period, according to a study by Which?