Proposed treatment options for HH after RYGB include diet therapy with a low-carbohydrate diet, drug therapy to inhibit carbohydrate digestion (acarbose) or to inhibit insulin secretion by beta cells (e.g. diaxozide, octreotide, pasireotide) or surgical treatment by a reconstruction of the gastric bypass or by a partial pancreatectomy. The effectiveness of these therapies vary among patients, we expect that the effectiveness of different treatments depends on the underlying cause of HH.