This study will investigate the effect of the GLP-1 analogue lixisenatide compared with placebo, in a double blind crossover study, on postprandial triglyceride metabolism in 12 patients with type 2 diabetes. Chylomicron and VLDL production and clearance rates will be measured in a repeated meal study by labelling apoB-100 and apoB-48 and by labelling triglycerides using stable isotope methodology. Glucose flux in response to a mixed fluid meal will also be investigated using stable isotope methodology. Gastric emptying and post heparin LPL activity will be measured.