It is excreted in the urine many hours after it has been consumed. Caffeine may be used as a treatment for migraine headaches and in relieving, for a short time, fatigue or drowsiness . It is found naturally in the leaves, seeds, and fruits of more than 60 plants, including tea leaves, kola nuts, coffee, and cocoa beans. It is in coffee, tea, chocolate, cocoa and many carbonated beverages such as colas. It can also be produced synthetically.
Caffeine has no flavor and can be removed from a food by a chemical process called decaffeination.
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