Quoted By:
>Butyric acid is found in milk, especially goat, sheep and buffalo milk, butter, parmesan cheese, and as a product of anaerobic fermentation (including in the colon and as body odor). It is also suspected to be found in milk chocolate produced by the Hershey process, or added to imitate the flavour of Hershey's chocolate. Butyric acid is present in, and is the main distinctive smell of, human vomit.
>This flavor gives the product a particular sour, "tangy" taste which the US public has come to associate with the taste of chocolate, to the point that other manufacturers often add butyric acid to their milk chocolates.
