Obesity Clinical Trial
Official title:
Personalized Glucose Optimization Through Nutritional Intervention
Maintaining well-controlled blood glucose concentrations is essential in the prevention of chronic cardiometabolic diseases. The blood glucose response to dietary and/or lifestyle patterns may vary between individuals. Insulin resistance in specific metabolic organs such as skeletal muscle, adipose tissue or the liver may underlie differential blood glucose responses. This dietary intervention study aims to obtain insight into the metabolic and lifestyle determinants of postprandial blood glucose responses, and to establish the effect of macronutrient manipulation of a 12-week dietary intervention on blood glucose homeostasis in metabolically different subgroups an its relationship to physical and mental performance and well-being.
Study design: this study is a double-blinded, randomised, controlled, parallel design dietary intervention study. The study will be conducted at Maastricht University and Wageningen University and Research, the Netherlands. Study population: the study population will consist of 240 men and women between 40-75 years old, with a BMI 25-40 kg/m2. Participants will be either muscle insulin resistant (MIR) or liver insulin resistant (LIR), as classified by an oral glucose tolerance test (OGTT) during the screening procedure. A subgroup of 80 participants will be selected for detailed metabolic phenotyping. Intervention: for 12 weeks, participants will receive either a diet optimal for MIR (high in mono-unsaturated fatty acids) or a diet optimal for LIR (high in protein and fiber, low in fat) with respect to changes in disposition index. Participants will be randomly allocated to one of the two diets. Detailed laboratory and daily life phenotyping will be done pre- and post intervention. ;
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