Abstract
Several studies with diabetes-specific formulas (DSFs) for hyperglycaemic patients in need of nutritional support have been conducted in non-malnourished patients, mainly comparing products with varying macronutrient compositions. Here, the effect of a high energy, high protein DSF on postprandial responses was compared to a product with a similar macronutrient composition in malnourished or at risk of malnutrition patients with type 2 diabetes. In this randomised, double-blind cross-over study, 20 patients were included. After overnight fasting, patients consumed 200mL of a DSF or standard supplement (control) (19.6g protein, 31.2g carbohydrates and 10.6g fat), while continuing their anti-diabetic medication. The formulas differed in type of carbohydrates and presence of fibre. The postprandial glucose, insulin and glucagon responses were monitored over 4h. Data were analysed with a Linear Mixed Model, and results of the modified ITT population (n=19) are shown. Postprandial glucose response as incremental area under the curve (iAUC), was lower after consumption of DSF compared with control (489.7±268.5 (mean±SD) vs 581.3±273.9mmol/Lmin, respectively; p=0.008). Also, the incremental maximum concentration of glucose (iCmax) was lower for DSF vs control (3.5±1.4 vs 4.0±1.4mmol/L; p=0.007). Postprandial insulin and glucagon levels, expressed as iAUC or iCmax, were not significantly different between groups. Consumption of a high energy, high protein DSF by older malnourished or at risk of malnutrition type 2 diabetes patients resulted in a significantly lower glucose response compared to control. These data suggest that the use of a DSF is preferred for patients with diabetes in need of nutritional support.
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