While Coke has diet and zero versions so now does Red Bull, with zero calories joining sugarfree in the range. Red Bull says both zero and sugarfree are products designed to overcome the health barrier into the energy market, and both contain the same ingredients: caffeine, taurine and B-group vitamins. Zero calories is said to deliver a "refreshing twist" on the classic Red Bull flavour.

It is available in 250ml cans and four-packs as well as a 250ml £1.19 price-marked can.

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