Inclusion Criteria:  BMI 25-29.9 kg/m^2 HOMA-IR < 2.5 Fasting glucose < 6.1 mmol/L Stable weight since 3 months Access to iPhone with Bluetooth 4.0 and iOS 13 or later  Exclusion Criteria:  Diabetes Pharmacological treatment known to interfer with metabolism Antibiotics treatment the latest 3 months Vegetarian/Vegan diet Use of tobacco Pregnancy or breast-feeding