If the biggest thing you want out of your coffee in the morning is "oh my God, wake me the eff up please" . . . a new study figured out where you should buy it.
Buzzfeed bought 24 cups of coffee from four different major national chains: Starbucks, 7-Eleven, McDonald's, and Dunkin' Donuts. Then they had a lab analyze the cups to figure out every chain's average caffeine.
And the most jacked up coffee is from . . . 7-Eleven. Their cups had an average of 280 milligrams of coffee.
Starbucks was second at 267 milligrams . . . McDonald's has 227 milligrams . . . and Dunkin' Donuts has 220 milligrams.
After Buzzfeed got the results, they asked people if they'd consider switching to 7-Eleven now that they know it's got the most caffeine . . . and 14% said yes, they're planning on switching.