Inclusion Criteria:  age 40-75yrs BMI >25 kg/m2 Having a fasting glucose >6.1 mmol/L  Exclusion Criteria:  Use of medication/supplements that may influence the study results, such as metformin, gliclazide, glimepiride, tolbutamide, insulin, sitagliptin (DPP4 inhibitor), liraglutide (GLP-1 agonist), acarbose, repaglinide, pioglitazone, corticosteroids (systemically) , SGLT-2 inhibitors, (judged by our research physician) Having a fasting glucose >11.0 mmol/L History of gastro-intestinal surgery or having (serious) gastro-intestinal complaints History of liver dysfunction (cirrhosis, hepatitis) or liver surgery Reported slimming, medically prescribed or other extreme diets Reported weight loss or weight gain of > 5 kg in the month prior to pre-study screening Not willing to give up blood donation during the study Current smokers Alcohol intake ≥14 glasses (women) or >21 glasses (men) of alcoholic beverages per week, on average pregnant or lactating (self-reported) Abuse of illicit drugs (soft- and hard drugs) Food allergies for products that we use in the study Participation in another clinical trial at the same time Being an employee of the Food, Health & Consumer Research group of Wageningen Food & Biobased Research or dept. human nutrition and health of Wageningen University.