According to a review of the medical literature , there were only 45 caffeine-related deaths reported between and Energy drinks typically contain more caffeine than coffee — making them, at least in theory, easier to overdose on. A generously caffeinated energy drink might contain mg of caffeine — so a person would need to quickly drink 10 to reach deadly blood levels of the stimulant.
Even so, medical complications from energy drinks are still rare. They are arguably the most dangerous form of caffeine, and the most likely to lead to serious health problems.
According to the FDA , caffeine powder is pure caffeine — and single teaspoon of the stuff is roughly equivalent to the amount in 28 cups of coffee. Jeffrey Goldberger, a University of Miami cardiologist and expert on the health effects of caffeine, estimated the maximum potential amount of caffeine Cripe ingested from those three drinks was about mg. Instead, he thinks there was probably another unrecognized health issue at play, or that this may just be one of the rare cases of sudden death at a young age.
But it does have the potential to be dangerous at extremely high doses, and there are people who have some sensitivities to it. The bottom line: If you stick to regular coffee, tea, and the odd energy drink — and avoid chugging these beverages in Herculean doses — you should be just fine. Our mission has never been more vital than it is in this moment: to empower through understanding. Financial contributions from our readers are a critical part of supporting our resource-intensive work and help us keep our journalism free for all.
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Reddit Pocket Flipboard Email. In moderation, caffeine can have beneficial effects. But in larger doses it can put your health, and in rare cases, even your life at risk. But the incident has still raised questions about the safety of caffeine, especially when ingested in large amounts over a short period of time.
Read more: Effects of caffeine on the body ». The lethal dose of caffeine for most people, says Temple, is about 10 grams, although this varies from person to person. A cup of coffee has around to milligrams of caffeine. An energy drink contains anywhere from 50 to mg of caffeine. A can of soda typically has less than 70 mg. So even with the most highly caffeinated energy drink, you would still have to drink around 30 of them in rapid succession to reach the 10 g range.
Chances are, if you tried to drink that much, your body would stop you before you reached toxic levels. With caffeine powder or tablets, though, you can ingest a large amount at the same time. A teaspoon of the powder has 3, mg of caffeine.
Read more: Facts about caffeine overdose ». Around 90 percent of adults in the world consume caffeine daily — in the form of coffee, tea, soda, energy drinks, and other beverages.
Even chocolate contains small amounts of caffeine. Some studies show that caffeine can increase alertness, mental energy, and concentration, especially in people who are tired.
Some people, though, can drink several cups of coffee a day and hardly feel the effects. Others have trouble sleeping after eating too much chocolate before bedtime. Genetics may play a role in determining why some people are more sensitive to caffeine.
Underlying health problems — like those that involve the heart — or medications can also lead to a stronger reaction to caffeine. Read more: Is there such a thing as safe energy drinks? Meyler's Side Effects of Drugs. Waltham, MA: Elsevier; Meehan TJ. Approach to the poisoned patient. Philadelphia, PA: Elsevier; chap Reviewed by: Jacob L.
Editorial team. Caffeine overdose. Poisonous Ingredient Caffeine can be harmful in large amounts. Where Found Caffeine is an ingredient in these products: Certain soft drinks such as Pepsi, Coke, Mountain Dew Certain teas Chocolate, including hot chocolate drinks Coffee Over-the-counter stimulants that help you stay awake such as NoDoz, Vivarin, Caffedrine, and others Workout supplements, such as Force Factor Fuego, Red Bull and 5-hour Energy drinks, and many more Other products may also contain caffeine.
Symptoms Symptoms of caffeine overdose in adults may include: Breathing trouble Changes in alertness Agitation, confusion , hallucinations Convulsions Diarrhea Dizziness Fever Increased thirst Increased urination Irregular heartbeat Muscle twitching Nausea, vomiting Rapid heartbeat Sleeping trouble Symptoms in babies may include: Muscles that are very tense, then very relaxed Nausea, vomiting Rapid, deep breathing Rapid heartbeat Shock Tremors. Home Care Seek medical help right away.
Before Calling Emergency Have this information ready: Person's age, weight, and condition Name of the product ingredients and strength, if known Time it was swallowed Amount swallowed. Poison Control Your local poison control center can be reached directly by calling the national toll-free Poison Help hotline from anywhere in the United States.
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