How much caffeine do different foods and drinks contain?
The average person consumes about 120 mg of caffeine a day, which is a moderate amount. We get about 75 percent of our caffeine from coffee, 15 percent from tea, 10 percent from soda, and 2 percent from chocolate. Caffeine is a common ingredient in food, so 300 mg adds up more quickly than you might think. This chart lists a few common items that contain the stimulant. Tea and chocolate also contain other stimulants related to caffeine, called theophylline and theobromine, and these have an unknown effect on human fertility. Approximate caffeine content in milligrams (mg)Coffee and tea Coffee, brewed, 8 oz, 65-135 mg Coffee, instant, 8 oz., 60-85 mg Coffee, espresso, single 1 oz. shot, 30-50 mg Starbucks coffee (tall 12 oz.) 375 mg Starbuck latte (tall 12 oz) 35 mg Tea, black, 8 oz., 20-110 mg Tea, green 8 oz., 30-35 mg Tea, iced 8 oz.,10-50 mg Tea, instant 8 oz., 25-30 mg Cocoa, 8 oz., 5-30 mg Soft drinks Coca cola, 12 oz. can, 34 mg Diet Coke, 12 oz. can, 45 mg Pepsi, 12 oz. can, 38
