ABSTRACT
Genetic influences fall into this category, although evidence from twin studies offers little support, in that identical twins have no more similar preferences than fraternal twins. In this chapter, the author briefly describes our experimental protocols for food intake. She usually schedules subjects to arrive at the laboratory at lunchtime, so they will be moderately hungry. The author finds that the greater the difference among the sensory properties of the various foods in a meal, the greater the enhancement of food intake. The standard method with which to test the regulation of caloric intake in adults is to give a fixed amount of various foods, then determine how much food is eaten subsequently. Foods were served from platters, and subjects, who were not aware that intake was being measured, helped themselves. Although caloric intake was constant, the intake of various macronutrients was affected by the content of the lunches.
