Infants' Consumption of a New Food Enhances Acceptance of Similar Foods

Abstract

The number of feedings needed to increase intake of a novel target food was investigated, and whether exposure effects generalized to other foods in a sample of 4 to 7-month-old infants (N=39). Other foods varied in their similarity to the target food, including the same food prepared by another manufacturer, similar foods (other fruits for infants receiving a target fruit) and a different food (e.g. vegetables for infants receiving a target fruit). Infants were fed the target food once a day for 10 days. Intake was used to indicate acceptance. Results revealed that exposure dramatically increased infants' intake of the target food, from an average of 35–72 g. Intake of the different food was unchanged. Same and similar food intake increased with target food exposure. Intake of the target, same and similar foods nearly doubled to 60 g after one exposure to the target food. These rapid increases in intake contrast the slower changes seen in young children. Results for the other foods suggest that infants may have difficulty discriminating among many foods.