Effects and Consumption Caffeine
What is Caffeine? It is an alkaloid found naturally in such foods as coffee beans, tea, kola nuts, Yerba maté, guarana, and (in small amounts) cacao beans. Caffeine is created in plants as a form of pesticide, to kill of insects feeding on them. In its true form caffeine is a whitish-yellow powder substance, bitter in taste.
Caffeine’s main drug producing effects are: a stimulant that affect the central nervous system, effect the supply of oxygen to cells, the heart rate, and is a mild diuretic. Some studies show that small amounts of caffeine may increase our cognitive functioning and improve our mood.
One common source of caffeine is the coffee plant, the beans from which are used to produce coffee. Caffeine content varies substantially between Arabica and Robusta species and to a lesser degree between varieties of each species. A single serving (6 to 8 fl oz) cup of drip coffee contains around 100 to 125 mg of caffeine. However the world over coffee varies considerably in caffeine content per serving, and range from 75 mg to 250 mg.
Tea is another common source of caffeine in many cultures. In general tea contains half the amount of caffeine per serving than coffee, though certain types of tea, such as Lapsang sou chong smoked teas, and oolong contain less caffeine.
Just how much is a safe amount of caffeine, it is generally agreed that consuming up to 300 mg of caffeine per day is safe. That is the equivalence of drinking three cups of coffee or six cups of tea a day.
Tags: arabica bea, caffeine, Coffee, oolong, Oolong tea, Robusta coffee bean
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