People who combine energy drinks and alcohol may be more likely to drink to excess.Ī fetus or newborn is unable to break down caffeine quickly. Ventricular fibrillation stops the heart from beating normally and causes cardiac arrest.Ĭombining caffeine with alcohol can have several harmful effects.Īlcohol is a depressant, but caffeine can partly mask the effect of alcohol by making a person feel more alert. This condition happens when the lower chambers of the heart vibrate rather than contracting regularly. The cause of death from caffeine overdose is typically ventricular fibrillation. It stresses that pure and highly concentrated caffeine products can have serious health consequences. The United States Food and Drug Administration (FDA) warns that a teaspoon of powdered caffeine can be equivalent to 28 cups of coffee. Unlike drinking coffee, or even taking supplements containing caffeine, using purified caffeine powder is highly dangerous and much more likely to cause an overdose.

Supplements increase the risk due to having higher levels of caffeine than foods and drinks. A concentration of 80 to 100 mg/L can be fatal.Ĭaffeine overdose is most likely to result from taking a dietary supplement or caffeine tablets rather than from drinking coffee, especially when people combine these products with energy drinks, sodas, or coffee. In general, caffeine will begin to affect the body if there are more than 15 milligrams per liter (mg/L) in the blood. The researchers believe that around one-third of these deaths are likely to be suicide. This review included all journals since online databases began.

In a 2018 review of scientific journal articles, researchers identified 92 reported deaths from caffeine overdose. However, a life-threatening overdose is rare, and a caffeine overdose as a cause of death even rarer. A person might find consuming too much caffeine and experiencing side effects to be easy.

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