Some energy drinks contain 17½ teaspoons of sugar per can, research finds

More than three-quarters of people surveyed support introducing age restrictions on sale of energy drinks to children

There is now greater availability of energy drink products, researchers found. Photograph: Yui Mok/PA Wire
There is now greater availability of energy drink products, researchers found. Photograph: Yui Mok/PA Wire

Some energy drinks sold in Ireland contain up to 70g – or 17½ teaspoons – of sugar per can, new analysis has found.

The research by Safefood, published on Monday, also found 77 per cent of people surveyed support introducing age restrictions on the sale of the drinks to children.

Researchers found high levels of energy drink consumption among younger age groups, prompting concerns about the impact of these products on the health of children and teenagers.

More than half, or 54 per cent, of 15- to 24-year-olds drink the energy drinks at least once a week, with 12 per cent consuming them every day.

An energy boost was the primary reason given for drinking them (51 per cent), followed by liking the taste (45 per cent).

Among parents of children under 18, 11 per cent reported that their child drinks energy drinks at least weekly.

According to the report, there is now greater availability of energy drink products, rising from 39 in 2015 to 77 currently. Portion sizes have also increased, with 55 per cent being sold in 500ml cans, up from 38 per cent in 2019.

Average sugar levels have risen from 22.6g per serving in 2019 to 30.9g in 2026, an increase of around two teaspoons of sugar per serving. Three products in the survey contained between 65g and 70g of sugar per serving, equal to 17½ teaspoons.

The average energy drink contains 115mg of caffeine per serving, equivalent to 1.4 espressos, while some products contain up to 200mg, or about 2.5 espressos.

The report said although caffeine concentration per 100ml has remained stable since 2015, larger serving sizes mean more caffeine is being drunk.

Despite high consumption, almost everyone (97 per cent) was aware that energy drinks can negatively affect sleep, concentration and mood, particularly in children and young people.

Dr Aileen McGloin, director of nutrition at Safefood, said many people may not realise how much sugar and caffeine they can get from a single energy drink.

“While energy drinks may promise a quick energy boost, they often come at a significant nutritional cost. Children and young people are more sensitive to the effects of caffeine than adults, and drinks that are high in both sugar and caffeine can impact sleep, concentration and overall health,” she said.

“If you’re looking to improve your energy levels, eating regular, balanced meals, staying well-hydrated and getting enough sleep are healthier and more sustainable ways to do it. When it comes to hydration, water is always the best choice.”

The report has been shared with the Department of Health, with Minister for Public Health Jennifer Murnane O’Connor acknowledging the “strong support” for restrictions on the sale of energy drinks to children.

“Protecting the health and wellbeing of children and young people is a priority for both the Government and the Department of Health,” she said.

“The sale and consumption of stimulant drinks remains a concern, especially given how popular these products are with younger age groups.”

Shauna Bowers

Shauna Bowers

Shauna Bowers is Health Correspondent of The Irish Times