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Risk assessment of caffeine among children and adolescents in the Nordic countries

image of Risk assessment of caffeine among children and adolescents in the Nordic countries

The first part of the report has its main focus on a hazard identification and characterisation of caffeine, with special emphasis on the effects on the central nervous system. Furthermore, there is a review of epidemiological and clinical studies on caffeine in children and adolescents. The Project Group identified exposures to caffeine associated with tolerance development with withdrawal symptoms and anxiety and jitteriness in children and adolescents. The second part of the report gives an overview of caffeine intakes among children and adolescents in the Nordic countries. Because access to detailed data varied among the Nordic countries, the main focus is on intake of soft drinks. Caffeine-containing soft drinks are the main source of caffeine in children and adolescents. In the risk characterisation part the Project Group compared current intakes of caffeine with exposure associated with adverse/unwanted effects. Many Nordic teenagers have an intake of caffeine that can be associated with tolerance development and withdrawal symptoms, while approximately 20 % of the teenagers might be exposed to levels of caffeine inducing anxiety and jitteriness. Including other sources of caffeine such as chocolate, tea and coffee, these figures might be higher. There are large inter-individual differences in tolerance development and some reports indicate that a substantial fraction of teenagers might have a problem with controlling their caffeine intake.

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Introduction

Caffeine is a central nervous system and metabolic stimulant which has been enjoyed by humans for thousands of years through consumption of foods and beverages containing caffeine. Currently, regular daily consumption of caffeine-containing beverages is widespread throughout the world. Caffeine is provided through a number of different sources, most commonly though, through coffee, tea and soft drinks.

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