If your child just drank an energy drink, stay calm. A single can is unlikely to cause a medical emergency in most children, but it does deliver a significant dose of caffeine and sugar to a small body. What you need to do depends on your child’s age, size, how much they drank, and whether they’re showing any symptoms.
Steps to Take Right Away
First, check the can or bottle and note the caffeine content, the size of the drink, and how much your child actually consumed. Most energy drinks contain between 80 and 300 mg of caffeine per can, and some larger cans contain two or more servings. A typical 16-ounce energy drink packs around 160 mg of caffeine, which is more than an espresso.
If your child seems fine with no symptoms, you can call Poison Control at 800-222-1222 for personalized guidance. Have the container handy so you can read off the label, and be ready to share your child’s age, weight, and roughly how much they drank. Poison Control handles calls like this routinely and will tell you whether home monitoring is enough or if your child needs to be seen.
Call 911 immediately if your child is having seizures, is extremely agitated or restless, has difficulty breathing, or seems drowsy or hard to wake. These are signs of a serious reaction, not just jitters.
Do not try to make your child vomit. Inducing vomiting is no longer recommended for ingestions like this and can cause additional harm.
Why Energy Drinks Hit Children Harder
Caffeine toxicity is based on milligrams per kilogram of body weight. In children, ingesting roughly 35 mg per kilogram can produce moderate toxicity. For a 40-pound child (about 18 kg), that threshold is around 630 mg, or roughly four standard energy drinks. One can is well below that danger zone for most school-age kids, but a small child or a toddler who weighs 25 pounds reaches meaningful caffeine levels much faster. And even well below the toxicity threshold, caffeine causes noticeable effects in children who have little or no tolerance to it.
Energy drinks also contain ingredients beyond caffeine. Guarana is essentially an additional caffeine source (it’s a plant naturally high in caffeine), so the total stimulant load can be higher than the label suggests. Taurine, included at doses of 750 to 1,000 mg per serving, can amplify caffeine’s effects on heart rate and blood pressure. These combined ingredients are part of why the American Academy of Pediatrics says children and adolescents should not consume energy drinks at all.
Symptoms to Watch For
After a child drinks an energy drink, symptoms usually appear within 15 to 45 minutes as caffeine is absorbed. Mild symptoms include:
- Jitteriness or restlessness
- Rapid heartbeat or feeling the heart “pounding”
- Upset stomach, nausea, or abdominal pain
- Anxiety or unusual irritability
- Headache
- Difficulty sleeping (even hours later)
More concerning signs include vomiting, chest pain, confusion, extreme agitation, or a heart rate that feels very fast and doesn’t settle down after 30 to 60 minutes. A randomized trial in children found that energy drink consumption raised systolic blood pressure by about 5 mmHg and diastolic pressure by about 3 mmHg compared to a placebo. In a healthy older child, that’s a temporary bump. In a very young child or one with an underlying heart condition, it can be more significant.
Managing Mild Symptoms at Home
If your child is alert, acting mostly normal, and showing only mild jitters or an upset stomach, you can manage things at home while keeping a close eye on them. Offer water in small, frequent sips. The caffeine and sugar in energy drinks both pull water from the body, and staying hydrated helps your child process the caffeine more quickly. Avoid giving milk right away if they’re nauseated, as it may worsen stomach discomfort.
A small snack with protein and complex carbohydrates (crackers with peanut butter, a piece of toast) can help stabilize blood sugar after the sugar rush from the drink. Energy drinks often pack 50 to 60 grams of sugar per can, which can cause a spike followed by a crash that leaves kids feeling shaky, irritable, or headachy on top of the caffeine effects.
Keep your child in a calm, quiet environment. Stimulation from screens or physical activity can make the restless, anxious feeling worse. If bedtime is approaching, expect it to be disrupted. Caffeine’s effects in children typically last several hours, and in younger kids the body clears caffeine more slowly than in adults.
How Long the Effects Last
In older children and teenagers, caffeine’s half-life is roughly 3 to 7 hours, meaning it takes that long for the body to eliminate just half the dose. A child who drinks an energy drink at 4 p.m. may still have significant caffeine circulating at midnight. Younger children tend to metabolize caffeine more slowly, so effects can linger even longer. Plan for at least 4 to 6 hours of monitoring after ingestion. If symptoms are worsening rather than gradually improving after 2 hours, contact your pediatrician or Poison Control.
What Happens if Symptoms Are Severe
Severe caffeine reactions in children from a single energy drink are rare, but they do occur, particularly in very small children, those with heart conditions, or those who consumed a high-caffeine product. In an emergency setting, treatment focuses on hydration, managing rapid heart rate, and controlling any seizures. If a child arrives within an hour of ingestion, activated charcoal may be used to absorb caffeine still in the stomach. For most kids who drank one energy drink, the visit is brief and reassuring.
Preventing It From Happening Again
The AAP recommends that children stick with water and milk as their primary beverages. Energy drinks are often marketed with bright colors and flavors that appeal to kids, and older children may encounter them at friends’ houses or sporting events. The National Federation of State High School Associations specifically warns against using energy drinks for athletic hydration, since caffeine can raise blood pressure during exercise and worsen dehydration.
If your child is a teenager, a direct conversation about what’s in energy drinks tends to be more effective than a blanket ban. Many teens don’t realize that a single large can contains as much caffeine as two or three cups of coffee, plus stimulant-boosting additives like taurine and guarana that have not been studied for long-term safety in developing brains. Research on adolescent brain development suggests that chronic, high-dose taurine and caffeine intake may affect memory, social behavior, and stress regulation during a period when the brain is still maturing.