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Caffeine is the world's most widely consumed psychoactive drug. [20] [21] Unlike most other psychoactive substances, caffeine remains largely unregulated and legal in nearly all parts of the world. Caffeine is also an outlier as its use is seen as socially acceptable in most cultures with it even being encouraged.
Caffeine has also evolved independently in the more distantly related genera Theobroma and Camellia . [13] This suggests that caffeine production is an adaptive trait in coffee and plant evolution. The fruit and leaves also contain caffeine, and can be used to make coffee cherry tea and coffee-leaf tea. The fruit is also used in many brands of ...
Coffea liberica, commonly known as the Liberian coffee, is a species of flowering plant in the family Rubiaceae from which coffee is produced. It is native to western and central Africa (from Liberia to Uganda and Angola), and has become naturalised in areas including Colombia, Venezuela, the Philippines, Borneo and Java.
Natural sources of caffeine contain widely varying mixtures of xanthine alkaloids other than caffeine, including the cardiac stimulants theophylline, theobromine and other substances such as polyphenols, which can form insoluble complexes with caffeine. [12] [13] The main natural phenols found in guarana are (+)-catechin and (-)-epicatechin. [14]
The caffeine in these drinks either originates from the ingredients used or is an additive derived from the product of decaffeination or from chemical synthesis. Guarana, a prime ingredient of energy drinks, contains large amounts of caffeine with small amounts of theobromine and theophylline in a naturally occurring slow-release excipient. [15]
Whether you start each day with a latte or rely on a shot of espresso to get over the mid-afternoon hump, a healthy, moderate caffeine habit can provide 11 health benefits of caffeine, the most ...
Caffeine (1,3,7-trimethylxanthine) is the alkaloid most present in green and roasted coffee beans. The content of caffeine is between 1.0% and 2.5% by weight of dry green coffee beans. The content of caffeine does not change during maturation of green coffee beans, but higher caffeine content is found in plants grown at higher altitudes.
The caffeine in your coffee or tea might not just be a daily vice — it could be reducing your risk for heart disease, according to new research. Coffee could be more than a morning pick-me-up ...