Chewing gum, traditionally made from tree sap, is a soft, rubbery substance.
While gum itself isn’t a natural source of caffeine, manufacturers sometimes add caffeine to their recipes.
This has made caffeinated gum popular among athletes and those seeking an energy boost.
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Research indicates that caffeine from chewing gum is absorbed more quickly than from capsules.
This rapid absorption is likely due to the caffeine being absorbed through the buccal mucosa in the inner cheek.
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Caffeine is known to enhance athletic performance, which is why caffeinated gums, along with other caffeine sources, are listed as banned substances by the National Collegiate Athletic Association (NCAA) for athletes.
Caffeinated chewing gum can improve alertness and attention span.
For example, RunGum offers 50 mg of caffeine in just two pieces of gum.