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  • noun

Synonyms for caffeine

a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects


References in periodicals archive ?
Many plants - not just coffee - have caffeine in their leaves, stems and seeds.
The FDA said it will continue to aggressively monitor the marketplace for pure powdered caffeine products and take action as appropriate.
It also provides new and exciting insights into the effects of caffeine on human physiology.
Preload the filter with chemicals that are unlike caffeine in molecular structure but similar to other flavour and colour compounds found in coffee.
It's too early to know if caffeine (or coffee) lowers risk further.
Some can't even go two days without consuming the caffeine," said Marie Tannous, assistant professor at the faculty of natural and applied sciences of Notre Dame University-Louaize.
Now it is possible to get a caffeine fix when you're in a bookstore, or even if you're driving, with Starbucks drivethroughs," he says, adding that energy drinks are just as much of a culprit as coffee.
Participants in the study, who didn't regularly eat or drink caffeine, received a placebo or a 200mg caffeine tablet - the same as a large cup of coffee - five minutes after studying some images.
Caffeine cleared out all the concerns over 30 years ago with extensive research for possible links to birth defects in animals and cardiovascular disease in humans.
After puberty, however, caffeine was found to affect boys and girls differently, with boys having a greater response to caffeine than girls.
This states that for beverages that caffeine is added to for a physiological effect, in excess of 150 mg/l, must be labeled, “High caffeine content.
In a double-blinded trial, participants who were not regular caffeine consumers received 200 milligrams of caffeine or a placebo five minutes after studying a series of images.
children and adolescents are consuming caffeine on any given day, according to a recent study.