National Carbonated Beverage With Caffeine Day is observed worldwide on November 19. This unofficial holiday celebrates the enjoyment of caffeinated carbonated beverages, particularly sodas. While caffeinated sodas are not considered the healthiest option, many people indulge in them, with research indicating that 90% of adults in North America consume caffeine daily. Caffeine acts as a central nervous system stimulant, and its presence in soft drinks, especially colas, is well-known; colas originally derived caffeine from the kola nut. Although excessive caffeine intake can lead to mild physical dependence, caffeine addiction has not been documented. On this day, individuals are encouraged to enjoy their favorite caffeinated sodas without guilt.