How Caffeine Affects Kids And Teens

From sodas and coffee to energy drinks and even chocolate, caffeine is everywhere, and kids are consuming more of this stimulant than many parents realize. While it may seem harmless, caffeine can affect children and teens differently than adults.

Lucas Huffman, DO, with Franciscan Physician Network Family Medicine Sierra Park in Greenwood, Ind, explains why young people are more sensitive to caffeine and how parents can help manage intake.

Key Takeaways: Caffeine And Kids

• Kids are more sensitive to caffeine due to smaller body size, developing nervous systems and slower metabolism.
• Too much caffeine can cause sleep problems, anxiety, mood changes, jitteriness and even stomach issues.
• Children under 12 should avoid caffeine, while teens should limit intake to no more than 100 mg per day.
• Caffeine can hide in unexpected places like chocolate, iced tea, bottled drinks and even some medications.
• Parents can help by modeling healthy habits, reading labels and educating kids about how caffeine affects their bodies.

How Does Caffeine Harm A Child’s Health?

The American Academy of Pediatrics says that caffeine can have short-term and long-term effects on a child or teen. These include:

• Increased or rapid heart rate or breathing
• Elevated blood pressure
• Restlessness
• Difficulty sleeping
• Anxiety
• Gastrointestinal issues like nausea or diarrhea

Children or teens who take a large amount of caffeine too quickly have had serious medical issues, including severe heart arrythmias, heart attacks and even death.

Why Are Youth More Sensitive To Caffeine Than Adults?

Kids and teens process caffeine differently than adults, and those differences can have a bigger impact on their bodies.

“Their bodies are just smaller,” Dr. Huffman explained. “So, they’re drinking the same drinks that we’re drinking and just giving a much higher effective dose.”

Dr. Huffman noted that children’s nervous systems are still developing, making them more sensitive to stimulants like caffeine.

“They’re much more sensitive to stimulants such as caffeine, causing the anxiety,” he said.

Additionally, caffeine stays in their system longer.

“They metabolize slower,” he said. "So, the caffeine stays in their body longer.”

What Signs Might Parents Notice If Their Child Is Consuming Too Much Caffeine?

One of the most common signs is disrupted sleep. If your child is having trouble falling asleep, going to bed later than usual or waking up tired, caffeine may be a factor.

Dr. Huffman said parents should also watch for symptoms in their children like anxiety, mood swings and jitteriness. These can look similar to how adults feel after consuming too much caffeine.

Physical symptoms can also occur. Some children may experience stomach upset or changes in bowel habits.

Another important sign is dependence. Like adults, kids can experience headaches or irritability if they suddenly stop consuming caffeine.

How Much Caffeine Is Too Much For Kids And Teens?

The recommended limits may be lower than many people expect.

Dr. Huffman explained that the American Academy of Pediatrics recommends children under 12 avoid caffeine completely. For teens ages 12 to 18, “you get about 100 milligrams of caffeine maximum.”

He emphasized that this is a limit, not a goal — and many popular drinks, especially energy drinks, exceed that much caffeine in a single serving.

Where Can Caffeine Be Hiding In Your Child’s Diet?

Caffeine isn’t just found in coffee. It can show up in a variety of everyday items.

“Caffeine can be in a variety of different things,” Dr. Huffman said.

Food and drinks

Chocolate naturally contains caffeine, meaning chocolate-flavored foods and drinks may also contribute.

Other common sources include iced teas, bottled coffee drinks and even some specialty beverages.

Medications

Medications can also contain caffeine.

“A lot of headache medicines have caffeine in them,” Dr. Huffman said. “Some cold remedies have caffeine in it.”

Additionally, some menstrual pain relief medications and muscle pain medications may contain caffeine.

Because caffeine can come from multiple sources throughout the day, it’s easy to exceed recommended limits without realizing it.

How Can Parents Help Their Kids Manage Caffeine Intake?

Reading labels together and understanding what’s in food, drinks and the medications we’re taking can make a big difference in helping your children understand the risks of caffeine use.

Dr. Huffman encourages parents to lead by example.

“We have to be models of good health,” he said.

Rather than taking a strict or punitive approach, Dr. Huffman recommends helping kids understand how caffeine affects their bodies. Turning label reading into a conversation or even a game can help children make more informed choices.

Caffeine may be a normal part of many adults’ daily routines, but for kids and teens, it can have stronger and longer-lasting effects. By recognizing the signs of too much caffeine and encouraging healthy habits, parents can help support better sleep, mood and overall well-being.