Research shows that instant coffee usually contains less caffeine than regular coffee. One 6 oz cup contains roughly 45 mg or an average of about 57.1 mg. Although the name may be deceiving ...
Starbucks serves 75 milligrams of caffeine in each of its .75-ounce espresso shots. Dunkin Donuts claims a hefty 118 milligrams per shot. In comparison, drip coffee ranges from around 12 to 16 ...
The reccommended caffeine intake per day is 400 milligrams for most adults, according to the FDA, which levels out to be just around three 12-fluid-ounce cups of coffee. Try to stay within this ...