There is a persistent urban legend that Chocolate contains caffeine. It would seem that this rumor is based primarily on a confusion between two similar alkaloids: caffeine and Theobromine. Theobromine is the active ingredient in Chocolate and it occurs only in Cacao. The two stimulants are related and have a similar structures, but are very different chemicals with different properties, effects and origins. There are of course, some Chocolate products that have added caffeine, but it does not occur naturally in Chocolate.
This rumor seems to have a life of its own; it won't go away and yet most references to it are references to the urban legend itself! Amusingly, almost all of the Chocolate & caffeine references on the Internet are circular. (Follow the references through a few links sometime -- you often wind up back at the page where you began!!) It is actually quite common to see references that confuse Caffeine and Theobromine. Many people and some semi-scientific sources confuse the two. Stollwerck, for example, says in one place Chocolate contains 1.2% Theobromine and 0.2% Caffeine, but in another place it says just 1.4% Caffeine and doesn't mention Theobromine, which is obviously wrong.
There is no scientific substantiation that Chocolate contains caffeine, and a great deal of evidence that it does not. The Biochemist, (Apr/May 1993, p 15) did chemical composition tests where they specifically distinguished between Caffeine and Theobromine. They found regularly up to 1.3% by weight Theobromine in Chocolate. They also found other pharmacologically active compounds including up to 2.20% Phenylethylamine up to 1.54% Tele- methylhistamine and occasionally up to 5.82% Serotonin. They could not detect any Caffeine at all.
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Topic: No Caffeine in Chocolates? (Read 1773 times)