Soft drinks such as colas contain significant quantities of caffeine.

Caffeine is a natural stimulant that belongs to a class of compounds called xanthines. It is commonly found in beverages such as coffee, tea, and certain soft drinks like colas. Caffeine acts as a central nervous system stimulant, helping to increase alertness and reduce fatigue.

In the case of colas and other caffeinated soft drinks, caffeine is added as an ingredient during the manufacturing process. The specific amount of caffeine can vary depending on the brand and type of soft drink. However, it is important to note that the caffeine content in soft drinks is generally lower than that in coffee or tea.

It`s worth mentioning that soft drinks may also contain other ingredients such as sweeteners, flavorings, and carbonation, but the significant quantity of caffeine in colas is what distinguishes them in this context.