In this experiment, healthy subjects (n=12) will be asked to maintain their regular dietary and physical activity habits during the entire study course, avoid alcohol consumption as well as any unusual strenuous exercise 24 hours prior to the study. Exclusion criteria include: any significant medical diseases; pregnancy or lactation; regular use of medication that affects body weight; a weight loss of 3% or more in the preceding 3 months. Following a 12 hour (overnight) fast, they will be taken to the testing facility [Faculty of Agriculture and Food Sciences/Department of Nutrition or the Central research unit (CRU)/ American University Hospital] where: anthropometric measurements (height, weight) will be taken. A catheter will be inserted for blood withdrawal.