Rolls (and companions) probed the relationship between food and hunger:
“Volume of Food Consumed Affects Satiety in Men,” B.J. Rolls, V.H. Castellanos, et al., American Journal of Clinical Nutrition, vol. 67, no. 6, June 1998, pp. 1170–7. The authors, at Pennsylvania State University, explain that: [AIR 15:6]
“Subjects were served a milkbased drink or no drink (control), followed 30 min later by a selfselected lunch and > 4 h later by a self-selected dinner…. The volume of the drinks affected ratings of hunger and fullness. These results indicate that the volume consumed is an important determinant of satiety after milk drinks under these conditions.”