How Much Caffeine Is in a 12-Ounce Can of Diet Coke?


Quick Answer

Diet Coke has 45 milligrams of caffeine in a 12 oz can. Diet coke has a higher percentage of caffeine than a can of regular Coca Cola, which only has 32 milligrams of caffeine.

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Full Answer

Diet coke is the second top-selling soft drink, behind regular Coca Cola, and it comes in a number of different varieties including Diet Coke with Lemon and Diet Cherry Coke. Diet Coke's caffeine levels are relatively low compared to other caffeinated beverages.For example, a mug of coffee contains approximately 100 milligrams of caffeine, and mug of tea contains about 75 milligrams. Coca Cola also offers caffeine-free Diet Coke.

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