Together, obesity and diabetes form a 21st century epidemic, the treatment of which consumes a substantial fraction of global health costs. New and improved therapies are therefore desperately needed.Incretins are short peptide hormones released from the gut in response to food transit. These hormones regulate a plethora of processes to control food intake, body weight and glucose homeostasis. This is one of the fastest areas of growth within diabetes research, and over the past decade, in...