A new report into energy drinks warns they are not suitable for children under the age of 16.

Safefood says the drinks, which can contain up to 16 teaspoons of sugar, should not be used for rehydration after sport either.

The latest research shows that boys between 15 and 24 are the highest consumers, commonly using energy drinks as a mixer for alcohol.

Advertisers are being criticised for aiming campaigns at active young people with a focus on high adrenalin activities and music.

There are now calls for an awareness campaign to highlight the potential health issues.

Dr Cliodhna Foley-Nolan, Director, Human Health & Nutrition at Safefood said: “It’s really remarkable that these products are so prevalent and together, energy drinks and sports drinks now comprise more than 20% of the soft drinks market in Ireland.

“A typical small 250 ml can has sugar levels of 6 teaspoons per can which is equivalent to a full chocolate bar. The caffeine content is high and drinking two small cans and one small espresso of coffee drives an adult’s daily caffeine intake above recommended levels.

“In addition, the use of energy drinks as a mixer with alcohol among young adults also has consequences in the context of Ireland’s current binge-drinking culture. Safefood’s position continues to be that these drinks are not recommended as a mixer for alcoholic beverages but this is now common and part of the binge drinking culture prevalent particularly amongst our 15-24 year olds.”