Most folks assume that the hormone called insulin is at the heart of diabetes: either there’s not enough of it or it’s not working right.
But thats’s not the only possible mechanism for diabetes. I’ve written several times here about the glucagon-centric theory of diabetes, which is most closely associated with Roger Unger, M.D. If you’re interested in a scientific review article on glucagon and type 2 diabetes, here’s one:
Reference: Xiao C. Li and Jia L. Zhuo. Current Insights and New Perspectives on the Roles of Hyperglucagonemia in Non Insulin-dependent Type 2 Diabetes. Current Hypertension Reports. Oct 2013; 15(5): 10.1007/s11906-013-0383-y. doi: 10.1007/s11906-013-0383-y