Abstract

A variety of methods can be employed to assess an individual’s desired food portion for a type of food or feeling of satiety. However, there are general concerns associated with each method. While some approaches may be effective at predicting food intake, they can be costly. Tools must be tailored to the specific population being assessed. For example, overweight individuals tend to underreport portion sizes. Using the ‘method of constant stimuli’ may resolve such concerns because individuals are not required to explicitly identify their usual portion size. The purpose of this study was to compare a computerized portion size test to traditional visual analog scales in predicting food intake at a subsequent meal.