I recently received an e-mail from an organization to which I belong, with the worrisome title "'Possible link' between taking insulin glargine and developing cancer." It went on to explain that the current issue of Diabetologia, the journal of the European Association for the Study of Diabetes (EASD), features four studies that point to a "possible link" between taking insulin -- especially insulin glargine (Lantus) -- and developing cancer. Diabetologia's website has a listing of involved...