Do you crave chocolate? Feel like you need it sometimes? It may not be not your fault! A new study links the type of bacteria living in the digestive system to a desire for chocolate, reports MSNBC. Sunil Kochhar, co-author of the study, is in charge of metabolism research. But not at a university or hospital — at the Nestle Research Center in Lausanne, Switzerland. Nice job! Kochhar and his team found that men who felt "indifferent" about chocolate and men who ate chocolate daily had significant differences in their aminio acid makeup, indicating different types of bacteria. It's still not clear if the bacteria causes the cravings or vice versa but blah blah blah we want chocolate now. [MSNBC]