There is a study that demonstrates patients suffering from a cough who used a chocolate-based medication reported a “significant improvement” in their symptoms within two days, compared to those on a regular cough syrup, according to a study conducted by a research group at the University of Hull in Yorkshire, England.
In the study, the researchers examined 163 patients in Europe with a cough, randomly prescribing them either regular codeine or a chocolate-based medicine called ROCOCO. This study
proves that a new medicine which contains cocoa is better than a standard cough syrup. The researchers discovered an alkaloid in cocoa is better at suppressing a cough than codeine plus the chocolate is helpful in relieving irritation and inflammation. Why? Suck on a piece of chocolate and you’ll discover that the chocolate forms a coating that protects the nerve endings in the throat.
The study indicated that hot chocolate did not have the same medicinal effects as a piece of dark, yummy, exotic chocolate.