A randomized, placebo-controlled crossover trial of a decaffeinated energy drink shows no significant acute effect on mental energy

“Energy drinks” are heavily marketed to the general public, across the age spectrum. The efficacy of decaffeinated energy drinks in enhancing subjective feelings of energy (s-energy) is controversial. The authors sought to test the efficacy of the caffeine-free version of a popular energy drink compared with a placebo drink. This study was a randomized, double-blind, placebo-controlled, crossover trial in 223 healthy men and women aged 18–70 y...