Caffeine remains one of the most studied ingredients in esports nutrition. Research involving competitive gamers found that caffeine supplementation improved cognitive performance, reduced reaction times, and enhanced gaming-specific performance metrics such as target acquisition and shooting accuracy.
However, modern gaming formulations increasingly combine caffeine with complementary ingredients such as L-theanine, which may help create smoother focus and reduce overstimulation.
Many developers also incorporate ingredients that support neurotransmitter production, cognitive flexibility, and stress management.
Another emerging area involves ingredients traditionally associated with sports performance. Creatine, for example, is being explored for its potential effects on cognitive processing, working memory, and mental performance under demanding conditions.
Importantly, researchers consistently emphasize that supplementation works best when combined with foundational health practices such as quality sleep, hydration, physical activity, and balanced nutrition.