As for most adults, up to 400 milligrams of caffeine a day appears to be safe, according to the Mayo Clinic. "Healthy adults who choose to drink energy drinks should not exceed one can per day," the Mayo Clinic's Zeratsky said.
So, how many people have died because of energy drinks?
According to adverse event reports collected by the agency since 2004, a total of 34 deaths have now been linked to energy drinks. Of those, 22 deaths have been linked to 5-Hour Energy, 11 deaths have been linked to Monster, and one death, a first, has been linked to Rockstar.
What are the dangers of drinking energy drinks?
Potential risks associated with energy drink consumption include:
- caffeine overdose (which can lead to a number of symptoms, including palpitations, high blood pressure, nausea and vomiting, convulsions and, in some cases, even death)
- type 2 diabetes – as high consumption of caffeine reduces insulin sensitivity.
Can you die from caffeine?
It's easier than ever to die of a caffeine overdose. Experts say that a lethal dose is between 5 and 10 grams of caffeine, for your average healthy adult. A 20-ounce cup of Starbucks dark roast has 340mg of caffeine in it, so you'd have to drink between 15 and 30 of them before you died.
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