Caffeine Dosage

Labels on food and drinks have all kinds of information. But one thing they don't generally tell you is how much caffeine it contains. This is the most complete list I've found of the caffeine content of various beverages as well as some foods and medicines. I notice that my drink of choice, Coke, actually has a relatively low caffeine content. I'm not sure I want to know what a No-Doze would do to me. I think I'd rather just do the straight adrenaline shot.