Study hypothesis is to examine the relative contribution of macronutrients for gut hormone secretion after a mixed meal in healthy volunteers and in subjects with type 2 diabetes. Individual macronutrients or a mixed meal will therefore be served and gut hormones are measured during the following 300 min.

In healthy volunteers and subjects with dietary regulated diabetes mellitus, glucose, protein mixture or fat emulsion will be served individually and on a separate occasions a mixed meal will be served. Samples will be taken during the following 300 min. Concentrations of the gut hormones glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1, insulin and glucagon will be determined.

Inclusion Criteria:

• Healthy status or type 2 diabetes with dietary regulation

Exclusion Criteria:

• Liver disease
• kidney disease
• thyroid disease