Inclusion Criteria:  Healthy, non-smoking, non-diabetic men and women individuals with normal body mass index (BMI; between 18.5 and 24.9 kg/m2)  Exclusion Criteria:  Severe chronic disease (e.g. tumors, manifest coronary heart disease, diabetes mellitus, severe kidney or liver conditions, endocrine and immunological conditions) Gastrointestinal disorders (e.g. chronic inflammatory bowel disease) Lactose intolerance Pregnancy Competitive sports Lactation Alcohol Drug dependency