The present study aims to examine the associations between three important candidates for explaining overeating and overweight and compare their differential impact on food intake (as measured by a snack diary) and weight status in a prospective design with a 1 month follow-up.

In July 2010, the LISS panel was presented a questionnaire about eating habits and attitude regarding snacks. In August 2010, a random selection of the panel members that participated in part 1 was asked to keep a diary for one week in which to record all snacks consumed.