The document compares energy drinks, smoothies, and a potential hybrid drink. It defines energy drinks as containing caffeine and providing mental and physical stimulation, and lists four popular brands. Smoothies are defined as thick, blended beverages containing fruits or vegetables blended with a liquid. There are different types of smoothies such as fruit, green, healthy, and weight loss. The document notes statistics showing that in 2016, 3.4 million UK residents consumed a smoothie daily and 4.9 million were heavy energy drink users, suggesting there is potential for a hybrid energy and smoothie drink.