Breakfast was provided at 8 am, lunch at 12:30 pm and dinner at 6 pm. During both phases snack items were made freely available at all times. The amount eaten was determined by weighing each food item before consumption and any not eaten to the nearest gram. The foods were served in weighed quantities on tared containers. Plates were of a single design and neutral (white) color. The same size, style and color plates were used for the 10, 15 and 25 PEP version of each food. Participants were offered optional foods including 100g fruit salad, and decaffeinated tea sweetened with a measured amount of brown sugar with breakfast, and 100g vegetable salad with lunch and dinner. A three-day food diary completed prior to the 8 day ad libitum test period and foods consumed during the test period were analysed for total energy, protein, carbohydrate and fat content.