Caffeine is often called most widely consumed drug in the world. According to an article in New Scientist, 90 percent of Americans report using caffeine everyday. It is found in a variety of everyday products including coffee, soda, tea, energy drinks and chocolate. People often consume caffeine to increase their energy and alertness levels. The benefits of caffeine on weight loss have also been studied. There is evidence that caffeine can stimulate the metabolism and suppress appetite.
Definition of Caffeine
Caffeine is a psychoactive stimulant drug. It is found in the beans, leaves and fruit of certain plants that use it as a defense system because it paralyzes insects that feed on the plant. Humans often consume caffeine from coffee beans, ground and with water infused through them. Caffeine in tea comes from the leaves of a tea bush.
Caffeine's Effect on Weight Loss
Caffeine can suppress your appetite, increasing your metabolism and enhancing the benefits of exercise. The theory that caffeine suppresses your appetite is based on caffeine's effect on the neurotransmitters dopamine, serotonin and acetylcholine. These neurotransmitters tell you when you are hungry. Low serotonin levels can cause you to crave carbohydrate-rich foods. By increasing these levels from caffeine intake, you may reduce or eliminate these cravings. Studies also indicate caffeine can slightly increase your basal metabolic rate, states researcher Robert Conlee, Ph.D. Caffeine, when consumed before a workout, can give you more energy to work out longer or with more intensity.
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