Abstract
Caffeine is a naturally occurring plant alkaloid and is found in plant constituents such as coffee and cocoa beans, tea leaves, guarana berries and the kola nut [...].
MeSH terms
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Alkaloids / administration & dosage
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Alkaloids / analysis
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Athletes
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Cacao / chemistry
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Caffeine / administration & dosage*
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Caffeine / analysis*
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Coffee / chemistry
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Diet
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Doping in Sports*
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Fruit / chemistry
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Humans
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Paullinia / chemistry
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Performance-Enhancing Substances / administration & dosage
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Performance-Enhancing Substances / analysis
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Plant Leaves / chemistry
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Tea / chemistry
Substances
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Alkaloids
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Coffee
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Performance-Enhancing Substances
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Tea
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Caffeine