In 1924, researchers discovered that runners at the Boston Marathon ran considerably quicker when they consumed carbohydrates (CHO) as confectionary during the race. In the century since this study, CHO supplements have been extensively researched and highly commercialized, with drinks, gels, and candies sold around the world. Carbohydrates are among the few products in the lucrative world of dietary supplements that are supported by scientific evidence (e.g., Burke et al., 2011).