| Outcome Measures: |
Primary: Gastric emptying, Gastric retention (percent in the total stomach), 3 hours per gastric emptying study (i.e. 6 hours) | Secondary: Glycaemia, blood glucose (mmol/L) and plasma insulin (mU/L), 4 hours during each gastric empty study (i.e. 8 hours)|Gastrointestinal hormone release, GLP-1, GIP, C-peptide, 3-OMG, 4 hours during each gastric empty study (i.e. 8 hours)|Intragastric meal distribution, percent retention in the proximal and distal stomach, 3 hours during each gastric empty study (i.e. 6 hours)|Blood pressure, systolic and diastolic blood pressure (mmHg), 4.5 hours during each gastric empty study (i.e. 9 hours)|Heart rate, Heart rate (beats per minute), 4.5 hours during each gastric empty study (i.e. 9 hours)|Splanchnic blood flow, Doppler ultrasound of superior mesenteric artery flow (ml/min), 4 hours during each gastric empty study (i.e. 8 hours)|Cardiac output, Finapres (L), 4 hours during each gastric empty study (i.e. 8 hours)|Stroke volume, Finapres (mL), 4 hours during each gastric empty study (i.e. 8 hours)|Appetite, visual analogue questionnaire to assess hunger, fullness, desire to eat (mm), 4 hours during each gastric empty study (i.e. 8 hours)
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