Coffee has been used in foods, wines, and medicine. It grows in several places in the world such as India, Africa, United States, Mexico, South America, Central America, and the West Indies. There are over 100 types of coffee; a coffee is usually named for the area in which it is grown. Different areas of the world prefer different types of coffee. Caffeine, which is a stimulant, is found in coffee, and if it is taken out, the coffee is called decaffeinated. Many people all over the world drink coffee.