With a 13% total RTD volume CAGR over 2009-2014, energy drinks were the fastest growing category in soft drinks, which saw a 4% CAGR. Growth is, however, beginning to slow as the category becomes more mature. Over the 2014-2019 period, an 8% total RTD volume CAGR is projected. The top five markets for energy drinks in total volume terms are the US, China, the UK, Vietnam and Japan. In total value terms, the top five markets are the US, China, Japan, the UK and Brazil. Energy drinks companies see China and Brazil as key focus markets for the future. Companies are expected to launch more natural, zero-or low-calorie, reduced-caffeine varieties, with green coffee bean or tea extracts and fruit juices, instead of powdered caffeine and taurine, to address consumer and governmental concerns about the safety of high-caffeine drinks.