15 Dec 2017 --- A new study by campaign group Action on Sugar has revealed the sugar, calorie and caffeine content of energy drinks sold in the UK in 2015 and 2017 – and the results have reignited calls for a ban on sales to children under 16. Published in the BMJ Open by Action on Sugar based at the Queen Mary University of London, the study details how the industry has, to a certain extent reformulated some energy drinks to reduce sugar and caffeine, but the super-sized servings still remain a big problem.