Experimental procedures. Meal tests were performed in the morning after an overnight fast. The standardized mixed meal was composed of 2 eggs (100 g), 1 slice (50 g) of whole grain rye bread, 1 slice (50 g) of rye flour bread, 10 g of fat-reduced margarine, 20 g of boiled ham, and 25 g of diet jam, amounting to 450 kcal, 50 % carbohydrate, 20 % protein, and 30 % fat (based on calorie count). Patients were allowed to drink tea (black or fruit-based) or de-caffeinated coffee ad libitum.