pranams. hare krishna!
Gelatine is an unacceptable product to vegetarians as it is a by-product of the slaughterhouse industry, being made of protein derived from animal bones, cartilage, tendons and other tissues such as pig skin. but there are some that are made from seaweeds like carrageen and the like.
there are a lot of chewy candies that use gelatine from the beef marrow. check first on the ingredients label. but as the saying goes, better safe than sorry.
check no this site to know more http://www.vegsoc.org/info/gelling.html