Figure 1.

Three sizes of plates used in the series of studies of the effect of plate size on energy intake at a meal. Plate A was 17 cm (6.75 in) in diameter, Plate B was 22 cm (8.50 in) in diameter, and Plate C was 26 cm (10.25 in) in diameter. The three plates are shown side by side for comparison, but study participants never saw them displayed together.