Inclusion Criteria:  Caucasian men Age between 18 and 25 years Body mass index between 20-35 kg/m2 Informed consent  Exclusion Criteria:  Anaemia (haemoglobin below normal range) Alanine aminotransferase (ALAT) and/or aspartate aminotransferase (ASAT) >2 times normal values) or history of hepatobiliary and/or gastrointestinal disorder(s) Nephropathy (serum creatinine above normal range and/or albuminuria) Allergy or intolerance to ingredients included in the standardised meals First-degree relatives with diabetes and/or glycated haemoglobin (HbA1c) >48 mmol/mol Regular tobacco smoking or use of other nicotine-containing products Any ongoing medication that the investigator evaluates would interfere with trial participation. Any physical or psychological condition that the investigator evaluates would interfere with trial participation including any acute or chronic illnesses