An energy drink that it is claimed burns off more than 200 calories within three hours has secured a listing in Waitrose stores.

Cranberry-flavoured carbonated drink Aspire uses natural ingredients to stimulate the metabolism. Each can contains 12.5 calories and 75mg of caffeine the same as a standard coffee. The rsp for a 250ml can is £1.69 but the drink will feature in a Waitrose three-for-two promotion.

Aspire, launched last year, is made by Milton Keynes-based Fahrenheit 60 and is already in Holland & Barrett and Selfridges.