food high in caffiene
Most people associate caffeine with coffee, tea and chocolate. Other products, such as guarana, a Brazilian plant whose seeds are high in caffeine, and yerba mate, a South American herb used to make tea, are also natural sources of caffeine.ources of Caffeine. Currently, pure caffeine and caffeine citrate may be added to cola-type beverages and it must be declared in the ingredients list on the product label. Caffeine may not be added to any other food. Many foods and food ingredients contain caffeine from natural sources.