Beverages that promise an energy boost are evolving, both in how consumers perceive them and how formulators are approaching the ingredients within. Traditionally, the category has been crowded with options offering high amounts of sugar, caffeine and artificial ingredients. But, the previously sports-focused sector is moving toward more natural and functional ingredients, with less sugar and artificial sweeteners, and a broader appeal that corrals women, the sober-curious and drinkers in search of mental acuity and overall wellness.