Determination of the Bioavailability of Short Chain Fatty Acids in Healthy Humans

Inclusion Criteria: * Healthy volunteers * Regular dietary pattern (3 meals/day) * Age: 18-65y * BMI: 18,5-27 kg/m2 Exclusion Criteria: * Intake of antibiotics 1 month prior to the study * Abdominal surgery in the past, with the exception of appendectomy * Intake of medication influencing the gastro-intestinal system 14 days prior to the study * In treatment at a dietician * Intake of pre- and/or probiotics * Exposure to radioactivity 1 year prior to the study * Serious chronic disease of the gastrointestinal tract * Use of medication that affects the gastro-intestinal tract during the last 2 weeks prior to the study * Pregnancy, pregnancy desire or lactation * Blood donation during the last 3 months prior to the study * Diabetes (type 1 or 2) * Aberrant hemoglobin level (Hb) in blood. Normal between 14.0 and 18.0 g/dL for men and between 12.0 and 16.0 g/dL for women