Davis Allen Cripe, 16, dies of caffeine overdose after consuming soda, coffee, energy drink in Richland County, South Carolina
A 12-ounce bottle of Mountain Dew contains 54 milligrams of caffeine.
While McDonald’s doesn’t currently report the amount of caffeine in their coffee, Caffeine Informer estimated a large, 21-24-ounce McDonald’s latte contains 178 milligrams of caffeine.
"The autopsy was performed and there was nothing there to indicate any type of ... undiagnosed heart condition," he said.
He said a medical examiner and a forensic toxicologist both examined Cripe. "Based on his weight, the intake of caffeine that he had exceeded what is considered a safe level," Watts told NBC News.