Chocolate as a cough suppressant?

Question: I have been working on a cold and cough. I ate part of a bar of chocolate and stopped coughing for 2 hours. When I ate some more i stopped coughing again. Any info or ideas other than psychosomatic?

Answers:
the caffeine in the chocolate COULD be causing cough suppression. I've never heard of caffeine from chocolate causing cough suppression per se, but caffeine can do that. The amounts in chocolate and coffee and tea, etc. are usually much too low to have any kind of theraputic effect, but i suppose if you're very sensitive to caffeine and you ate enough chocolate it's theoretically possible.

Another possibility is that it's mechanical. Chocolate could work like a thick syrup or very very viscous liquid if it's warm enough. Viscous liquids like glycerol are cough suppressants because they coat the area above the larynx and prevent the pharynx from being irritated, temporarily of course--that's how robitussin works.

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Could actually be that the endorphins produced by eating chocolate alleviated some cold symptoms.

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