A functional beverage is a drink product that is non-alcoholic and includes in its formulation ingredients such as herbs, vitamins, minerals, amino acids or additional raw fruit or vegetables. It often claims to provide specific health benefits. Examples include sports and performance drinks, energy drinks, ready to drink (RTD) teas, enhanced fruit drinks, and enhanced water. Functional drinks are promoted with benefits such as heart health, improved immunity and digestion, joint health, satiety, mood and energy-boosting. The Global functional drinks market has been estimated to be worth $89.6 billion by 2016 (Source: Functional Drinks: Global Industry Guide) with total revenues of $65 billion in 2013 (Source: Datamonitor).