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  • naturally
  • Caffeine is naturally found in certain leaves, beans, and fruits of over 60 plants worldwide. (medicinenet.com)
  • Caffeine is a drug that is naturally produced in the leaves and seeds of many plants. (kidshealth.org)
  • Caffeine is a naturally occurring compound found in the leaves, seeds, or fruits of more than 60 plants, including coffee ( Coffea arabica ) beans, cacao ( Theobroma cacao ) beans, kola ( Cola acuminata ) nuts, guarana ( Paullinia cupana ) berries, and tea ( Camellia sinensis ) leaves. (wellness.com)
  • Caffeine occurs naturally in coffee beans, tea leaves, cacao beans, and some tree nuts. (nationalgeographic.com)
  • Caffeine that's present naturally, from a food ingredient, doesn't require labeling, but if caffeine is added to a food or drink, it must appear on the list of ingredients, says Siobhan DeLancey, a public affairs specialist at the FDA. (baltimoresun.com)
  • Labeling all caffeine-containing products with the precise caffeine content does pose significant challenges, Bell says, because the amount found naturally in products such as tea, coffee, chocolate and coffee-flavored ice cream or yogurt differs depending on the variety and crop growing conditions. (baltimoresun.com)
  • stimulates
  • Caffeine stimulates the central nervous system, an effect that may begin as early as 15 minutes after ingesting the caffeine and can last for as long as six hours. (news-medical.net)
  • Caffeine is a chemical compound that stimulates the central nervous system. (nationalgeographic.com)
  • Caffeine causes neural excitation in the brain, which the pituitary gland perceives as an emergency and stimulates the adrenal glands to release adrenaline. (brown.edu)
  • placenta
  • Caffeine permeates the placenta and reaches the fetus. (empowher.com)
  • Caffeine is transmitted through the placenta and through breast milk to the baby. (brown.edu)
  • Research has shown that caffeine is able to cross the placenta, which led to worries that it could cause miscarriage or premature birth. (ibtimes.com)
  • miscarriage
  • In the other, Dr. De-Kun Li and his colleagues at Kaiser Permanente's Division of Research in Oakland found a higher risk of miscarriage in women who consumed more than 200 mg of caffeine per day, but no extra risk at lower levels. (ibtimes.com)
  • metabolism
  • Caffeine has no effect on the metabolism of alcohol by the liver and thus does not reduce breath or blood alcohol concentrations (it does not "sober you up") or reduce impairment due to alcohol consumption. (cdc.gov)
  • I saw an interesting article today that said researchers found significant differences in rate of metabolism of caffeine in people. (centerforinquiry.net)
  • cups
  • This adds up to an average of about 280 mg of caffeine per day, or the equivalent of about two cups of coffee. (medicinenet.com)
  • One tablespoon of pure caffeine - equivalent to drinking 75 cups of coffee at once - can have lethal consequences. (nationalgeographic.com)
  • Nor, for that matter, will two cups of coffee from the same bean contain the same caffeine -- it will depend on how you brew your coffee or how long you let it steep. (baltimoresun.com)
  • That definition of moderate caffeine consumption would also include drinking about four 8-ounce cups of tea or more than five 12-ounce cans of soda a day, or eating six or seven dark chocolate bars. (ibtimes.com)