Is Taurine Safe? The Truth About Energy Drinks

9 min read

Last updated November 10, 2026

Taurine itself appears safe at the levels found in energy drinks. The bigger concerns are usually the caffeine and sugar that come with it.

The European Food Safety Authority concluded in 2009 that taurine from regular energy drink use was not a safety concern. The FDA, meanwhile, warns that too much caffeine can cause a racing heart, jitters and trouble sleeping.

This guide explains what taurine is, what the research shows and how to drink energy drinks more safely. It also covers who should avoid them.

Health note. This article shares general information, not medical advice. Talk with your doctor before using taurine supplements or energy drinks if you have a health condition or take medicine.

Key Takeaways

Taurine is an amino acid your body makes and that is found in meat and fish.
EFSA found taurine in energy drinks was not a safety concern at typical intake.
Caffeine is the main risk in energy drinks, not taurine.
The FDA says up to 400 mg of caffeine a day is generally safe for healthy adults.
Experts advise against energy drinks for children and teens.

Jump to a section

What taurine is
Is taurine safe
Aging research
Caffeine concerns
Sugar
Mixing with alcohol
Who should avoid
Safer habits
When to get help
Frequently asked questions

What Is Taurine?

Taurine is an amino acid found naturally in the body, especially in the heart, brain, eyes and muscles. Your body can make it, and you also get it from meat, fish and dairy.

Taurine is one of the most common energy drink ingredients. Many people assume it is a stimulant, but it is not.

Taurine helps with several body processes, including fluid balance and bile formation. It is not a stimulant like caffeine.

400 mgDaily caffeine the FDA says is not generally linked to negative effects in healthy adults.

Is Taurine Safe?

In 2009, the European Food Safety Authority reviewed taurine in energy drinks. It concluded that exposure through regular energy drink use was not of safety concern.

EFSA noted that its opinion covered the ingredients taurine and glucuronolactone, not energy drinks as a whole. It also said reported health problems often involved high caffeine, alcohol or exercise.

Question	What the evidence says
Is taurine in energy drinks harmful?	EFSA found no safety concern at typical intake
Is taurine a stimulant?	No, caffeine is the main stimulant
Do taurine supplements help?	Human evidence is limited
Is more always better?	No, and long-term high doses are not well studied

Quick tip. Check the caffeine amount on any energy drink, not just the taurine. Caffeine content varies widely by brand.

What About the Taurine and Aging Study?

A 2023 study in the journal Science made headlines. Researchers found that taurine levels fell with age, and taurine supplements extended lifespan in mice and worms.

In monkeys, taurine improved some health measures but did not show a lifespan benefit. In people, lower taurine was linked to some age-related diseases.

The authors themselves said clinical trials in humans are needed. The human data only shows a link, not proof that taurine slows aging.

The animals also received very high doses. Do not start taurine supplements based on this study without talking to a doctor.

How often do you drink energy drinks?

Daily
A few times a week
Rarely or never
Not sure

Caffeine Is the Real Concern

The FDA says energy drinks generally contain 54 to 328 milligrams of caffeine per 16 fluid ounces. That range is huge, so one can may be like a soda or like several cups of coffee.

Drink	Caffeine
12 oz cola	About 35 mg
8 oz coffee	About 100 mg
16 oz energy drink	About 70 to 240 mg
Energy shot	About 113 to 200 mg

These comparisons come from NCCIH. Guarana, another common ingredient, adds even more caffeine.

The FDA lists signs of too much caffeine. They include a faster heart rate, palpitations, high blood pressure, insomnia, anxiety, jitters, nausea and headache.

NCCIH warns that large amounts of caffeine may cause serious heart and blood vessel problems, such as heart rhythm problems.

Hidden Sugar

NCCIH says a single 16-ounce energy drink may contain 54 to 62 grams of added sugar. That is more than the recommended daily limit for added sugar.

Sugar-free versions cut the sugar but still contain caffeine. Check both numbers on the label.

Too much added sugar over time is linked to weight gain and tooth decay. A daily sugary energy drink can add up to a lot of sugar over a year.

If you enjoy the taste, consider an occasional drink rather than a daily habit. Sparkling water with fruit can satisfy a craving for something fizzy.

Diet energy drinks use sweeteners instead of sugar. They avoid the sugar load but still carry the same caffeine concerns.

Energy Drinks and Alcohol

Mixing energy drinks with alcohol is risky. NCCIH explains that people may feel less drunk, even though coordination and reaction time stay impaired.

NCCIH cites CDC data that young drinkers who mix are four times more likely to binge drink at high intensity. They are also more likely to drive drunk or get hurt.

Learn more about risky combinations in our guide to medicines and alcohol.

Emergency Room Visits

NCCIH reports that energy drink-related emergency room visits doubled between 2007 and 2011. In 2011, about 1 in 10 of those visits led to a hospital stay.

Many of those visits involved mixing energy drinks with alcohol or drugs. The data is older, but it shows the real risks of overuse.

Who Should Avoid Energy Drinks

Children and teens
Pregnant or breastfeeding people, unless a doctor approves
People with heart rhythm problems
People with high blood pressure
People with anxiety or sleep problems
People taking medicines that interact with caffeine

The FDA says medical experts advise against energy drinks for children and teens. NCCIH adds that caffeine may harm their developing heart and nervous systems.

If you take blood pressure medicine, read our guide to blood pressure medicines and ask your doctor about caffeine.

Powdered Caffeine Is Dangerous

The FDA warns that pure and highly concentrated caffeine products can cause serious harm, including death. Toxic effects like seizures can occur with about 1,200 milligrams taken quickly.

That amount is less than half a teaspoon of pure caffeine powder. Avoid these products entirely.

Energy Drinks, Exercise and Performance

NCCIH notes that several studies found energy drinks may improve endurance. There is less evidence for effects on strength or power.

Energy drinks may boost alertness and reaction time, but they may also reduce hand steadiness. Water and good sleep are safer foundations for performance.

Interested in other supplements? Read our guides on whether creatine is safe and fish oil benefits.

Taurine in Everyday Food

Food group	Taurine content
Shellfish and fish	Among the richest sources
Meat and poultry	Good sources, especially dark meat
Dairy	Small amounts
Plant foods	Very little or none

Most people who eat meat or seafood get taurine from food every day. Healthy bodies also make their own taurine.

Vegans and vegetarians get less taurine from food, but the body can still produce it. There is no clear evidence that most healthy people need supplements.

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Energy Drinks vs Coffee

Feature	Coffee	Energy drink
Caffeine	Natural, varies by brew	Added, varies by brand
Sugar	None unless added	Often high
Other ingredients	Few	Taurine, B vitamins, guarana and more
Label shows caffeine	Rarely	Not always required

NCCIH notes there is no requirement to declare caffeine amounts on the label of energy drinks or shots. Many brands list it anyway, so check carefully.

Myths About Taurine

Myth	Fact
Taurine is a strong stimulant	It is not a stimulant
Taurine causes the energy crash	Caffeine and sugar are more likely causes
Taurine supplements stop aging	Human trials have not shown this
All energy drinks have the same caffeine	Amounts vary widely

Tips for Parents

NCCIH reports that almost one-third of teens drink energy drinks regularly. Many do not realize how much caffeine they contain.

Talk with teens about caffeine and sleep.
Keep energy drinks out of the house for younger kids.
Offer water, milk or sparkling water instead.
Watch for sleep problems, jitters or headaches.

Sports drinks and energy drinks are not the same. Energy drinks contain stimulants, while sports drinks mainly contain sugar and electrolytes.

Safer Energy Drink Habits

Limit yourself to one energy drink a day or less.
Count all caffeine from coffee, tea, soda and pills.
Avoid energy drinks in the afternoon and evening.
Never mix energy drinks with alcohol.
Do not use energy drinks to replace sleep.
Choose water during exercise.

NCCIH warns that heavy energy drink use may disrupt sleep, especially in teens. Our guide on how to sleep better in winter has natural tips.

How to Cut Back on Energy Drinks

Stopping energy drinks suddenly can cause caffeine withdrawal. Headaches, tiredness and irritability are common for a few days.

Track how many drinks you have each day.
Cut back by one drink every few days.
Switch to smaller cans or sugar-free versions.
Replace some drinks with water or herbal tea.
Plan earlier bedtimes to make up for less caffeine.

Going slowly makes withdrawal easier. Most people feel better within a week or two, with steadier energy and much better sleep overall.

Caffeine and Medicines

The FDA notes that some medicines and health conditions make people more sensitive to caffeine. Ask your pharmacist if caffeine is safe with your prescriptions.

Stimulant medicines, some antibiotics and certain heart medicines may interact with caffeine. A quick question at the pharmacy can prevent problems.