Caffeine affects people differently, depending on their general health, age, weight, and height. A person who does not consume caffeine regularly may experience its effects in a more pronounced way than a person who frequently drinks coffee.
This quantity is equivalent to around three to five 8-ounce cups of coffee. The impact caffeine and stimulants on children and adolescents is not clear. This explains the advice of the American Academy of Pediatrics that children and adolescents should not consume caffeine. People can find caffeine in many different products. The most obvious are caffeinated drinks, such as coffee, tea, cola, and energy drinks.
Manufacturers also add caffeine to some foods, such as candies, and it occurs naturally in chocolate. Pre-workout or workout supplements for enhancing exercise performance often contain caffeine.
Medications, such as cold and flu tablets, also sometimes contain caffeine. Caffeine supplements are widely available in tablet or powder form. These forms often have far more caffeine than coffee, and people can find it hard to measure how much they have taken.
According to the Center for Science in the Public Interest , caffeine powder can contain between 3,—6, mg of caffeine per teaspoon. The FDA warn against the use of these products due to their potential to cause serious health consequences.
The following table, adapted from the Alcohol and Drug Foundation , lists the average caffeine content of some common sources:. If a person has any symptoms of caffeine overdose, or if they have taken a large amount of caffeine accidentally, they should seek medical advice.
A person can get immediate advice from Poison Control , a not-for-profit organization that runs a helpline and website to give information on accidental poisoning.
The half-life of a drug is how long it takes for half the drug to leave the body. The half-life of caffeine is 3 to 5 hours. A person may experience side effects that are unpleasant but not a cause for concern, such as feeling restless or dehydrated. These side effects will usually go away within 3 to 5 hours. A person who has a caffeine overdose may need medical treatment, including intravenous fluids, supplements, or activated charcoal.
Activated charcoal can stop caffeine from entering the gut. If caffeine does enter the gut, an even higher level could get into the blood and cause further health problems. Regularly consuming high doses of caffeine may cause long-term health problems, including :. If caffeine is technically a drug, then is it possible to overdose on caffeine-laced energy drinks?
Energy drinks get their energy mostly from caffeine, about 50mg to mg per can. But most formulas contain other energy-producing ingredients , such as guarana another stimulant , ginseng herbal supplement supposed to help with energy and mental function , and B vitamins also for energy.
These fizzy beverages also tend to be packed with lots of sugar to make them tolerable. Although 20g to 30g of sugar in a serving isn't necessarily deadly on the spot, too much of the sweet stuff can lead to a whole host of life-threatening issues, such as diabetes, metabolic disorders, and heart disease. Sure, there are sugar-free varieties, but those are just laced with artificial sweeteners instead ; not exactly a marked improvement.
But in terms of an overdose and what can kill you the fastest, the most dangerous of all these magical ingredients is the caffeine.
Caffeine affects everyone differently, which is why some coffee addicts are able to down three cold brews before work and be fine, and other weaklings are reduced to shaking in the fetal position after one shot of espresso. The more caffeine you ingest, the more you develop a tolerance and a mild dependence to it, so it becomes harder to elicit that jolt of energy with each dose.
Even for the most caffeine-dependent person, there are still side effects that set in after too much -- usually more than mg about three cups of coffee. Signs you've gone overboard are the usual suspects , like nervousness, jitteriness, and heart palpitations.
Energy Drinks. National Center for Complementary and Integrative Health. Modified July Caffeine: Is it a Problem for Kids? Poison Control. Published December Your Privacy Rights. To change or withdraw your consent choices for VerywellMind. At any time, you can update your settings through the "EU Privacy" link at the bottom of any page. These choices will be signaled globally to our partners and will not affect browsing data. We and our partners process data to: Actively scan device characteristics for identification.
I Accept Show Purposes. You can easily have a caffeine pill overdose if you take more than the stated dose. Side Effects of Caffeine. Was this page helpful? Thanks for your feedback! Whereas a normal cup of coffee might bring the concentration of caffeine in your plasma to 2. So if a true caffeine overdose is so rare, why has caffeine—perhaps the most widely used drug in North America—been blamed for contributing to a handful of deaths over the years?
Perhaps because it almost always works in concert with other far more nefarious factors such as alcohol or heart conditions. Indeed, the suit filed in California points out that Fournier suffered from Ehlers-Danlos syndrome.
According to the autopsy report, the cause of death was a cardiac arrhythmia that the caffeine brought on. Two cans of Monster each contain mg of caffeine, which the lawsuit equated with the caffeine of 14 oz.
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