An upright tab on an open energy drink tabShare on Pinterest
Some energy drinks contain more caffeine than coffee. WendellandCarolyn/Getty Images

Energy drinks might seem like a harmless indulgence for youngsters, but new research published in the journal Public Health suggests they’re anything but — especially in large quantities.


After a systematic review of 57 previous studies covering 1.2 million children in 21 countries, researchers from Newcastle University in the United Kingdom reported that energy drink consumption among young people is linked to poor sleep quality and short sleep duration as well as lower academic performance compared to non-energy drinkers.


Energy drink consumption was also associated with increased risk of attention deficit hyperactivity disorder (ADHD) symptoms, psychological distress, depression, anxiety, insulin resistance, and dental issues.


Furthermore, this study, which was an update to a 2016 review, also affirmed the previous study’s findings of a strong positive correlation between drinking energy drinks and smoking, alcohol use, binge drinking, and other substance use.


Cesar Sauza, a registered dietitian nutritionist at ehproject.org who was not involved in the research, praised the study’s design and said the findings echo what he’s seen in his own practice.


“The results are not surprising,” Sauza told Medical News Today. “In clinical practice I have seen energy drinks affect children negatively with their academic performance, likely due to altered sleep. Another reason the findings are not surprising is that most energy drinks are high in sugar and caffeine, both of which have negative effects on children when over-consumed.”


“The review had strict inclusion criteria and excluded 48 of the original 103 that were considered of ‘poor quality,’” he added. “Regardless of the design, systematic reviews like this one should not be used as strong evidence but as evidence that justifies the need for further longitudinal studies specifically looking at the effects of energy drinks on children long-term.”


That said, the Newcastle researchers said their findings were strong enough — given that they were based on repeated analysis of quality prior research — to suggest policy changes that could go into effect to better children’s health.


“We have raised concerns about the health impacts of these drinks for the best part of a decade after finding that they were being sold to children as young as 10 years old [and] cheaper than bottled water,” Amelia Lake, PhD, a professor of public health nutrition from Fuse, the Centre for Translational Research in Public Health at Teesside University in England, said in a press release. “The evidence is clear that energy drinks are harmful to the mental and physical health of children and young people as well as their behavior and education. We need to take action now to protect them from these risks.”


What’s in an energy drink? 

This is far from the first study to suggest a link between energy drink consumption and negative health effects.


Previous studies have reported that energy drinks can lead to an increase in heart attacks and heart disease risk factors. Others have pointed to the negative effects of sugar crashes and caffeine withdrawal associated with energy drinks.


It’s not always clear what’s in an energy drink as there is no agreed-upon standard for what an “energy drink” is, although the U.S. Food and Drug Administration calls it “a class of products in liquid form that typically contains caffeine, with or without other added ingredients.”


Those other ingredients usually include sugar and often other legal stimulants such as guarana and taurine.


According to data from the Center for Science in the Public Interest, energy drinks commonly can have as little as 75 milligrams (mg) of caffeine — a little less than an average cup of coffee — but up to 316 mg per 8 ounces, the equivalent of more than three cups of coffee.


The large “Charged Lemonade” at Panera, which was linked to the deaths of two people, had 390 mg of caffeine. While not labeled an energy drink, it had the two hallmarks of them: high levels of caffeine and sugar.


What parents can do about energy drinks

Before regulations come into play, the most important people who can help limit children’s energy drink consumption and help them understand the risks are their parents, experts say.


“Given the significant linkage between energy drink consumption and increased risk-taking behaviors, there is a need for a holistic intervention approach,” Dr. Menka Gupta, a co-founder of NutraNourish who was not involved in the study, told Medical News Today. “We should address the psychological and behavioral predispositions of young individuals. The increased prevalence of serious mental health concerns such heightened anxiety, depression, and ADHD symptoms further stress the importance of addressing this issue.”


She also said that when communicating with their kids, caretakers should be specific and practice what they preach.


“Parents should communicate specific health risks of energy drinks and their mechanisms, where possible,” Gupta said. “Their own behavior should be consistent with the advice they give to children as that’s a stronger signal than just the verbal cues. Having an open dialogue about peer pressure can also be helpful.”


RSV may cause inflammation and lead to nerve damage, study finds

Share on PinterestA recent study suggests that RSV can directly infect nerve cells, potentially caus

Gut bacteria may offer protection against respiratory illness

Share on PinterestA new mouse study shows certain gut bacteria may help protect against respiratory

'Sleepy Girl Mocktail': Can the Bedtime Drink Help You Fall Asleep?

The sleepy girl mocktail is popular on TikTok, with some users claiming it helps them get high-quali

MS: Ancient DNA holds clues about origins and genetic risk

Share on PinterestCan ancient bodies reveal some of the secrets of multiple sclerosis? Design by MNT

Heart disease: An extra 15 to 30 minutes of exercise a day can help

Share on PinterestResearchers say sitting all day at work can increase heart disease and other healt

Heart health: Lack of exercise during free time may raise death risk

Share on PinterestResearch has linked a lack of exercise to a higher risk of cardiovascular death. T

Bottled water contains alarming amount of nanoplastics: What to know

Share on PinterestA recent study found that bottled water contains thousands of nanoplastic particle

ADHD: Are youngest children in class more likely to keep diagnosis?

Share on PinterestResearchers say the youngest child in a classroom may be more likely to be diagnos

Flu vaccine: New antibodies could offer broader protection

Share on PinterestResearchers identified new antibodies capable of combating multiple flu viruses, w

Does daydreaming help consolidate memories?

Share on PinterestDoes daydreaming have unexpected benefits for the brain? Image credit: Hernandez &

Climbing 50 Stairs a Day May Lower Heart Disease Risk

Climbing at least five flights of stairs a day can cut the risk of cardiovascular disease by about 2

Waist-to-Hip Ratio Is a Better Health Indicator Than BMI

A new study suggests waist-to-hip ratio (WHR) may be a more accurate indicator of health and risk of