The kola nut is the fruit of the kola tree, indigenous to West Africa. The trees, which reach heights of 40 to 60 feet, produce a star-shaped fruit. Each fruit contains between two and five kola nuts. About the size of a chestnut, this little fruit is packed with caffeine.
In certain African countries, the kola nut is chewed during ceremonies and rituals. It is also used to sweeten breath.
The kola nut is also used as an additive in energy drinks and performance enhancers. In some cases, it is used in the form of an extract or powder.