Sales of fruit juices and smoothies have increased while tea and coffee sales are on the decline, according to Mintel.

In its latest research it indicates that Britain now consumes 2.2bn litres of juice drinks a year, with about £2.3bn spent on this sector.

Orange and apple juice still account for more than 70% of sales and demand for Grapefruit and tomato is down. The market for exotic juices such as kiwi, passion fruit and berries however, soared by 133%.

Diet experts responding to the report have said that fruit juices are not as healthy as many people believe because of their high sugar content.