Pre-exposure to diet-congruent food reduces energy intake in restrained dieting women

Abstract

Dietary restriction often fails in the face of tempting and palatable foods; however there is evidence that exposure to diet-congruent cues, such as foods associated with ‘slimming’ may facilitate control over food intake. The present study examined the effect of exposure to a diet-congruent food on subsequent energy intake in active dieters. Using a within-subjects design, restrained eaters who were currently on a diet (n=13) and unrestrained non-dieters (n=21) were exposed to a tempting food cue (chocolate) and a diet-congruent food cue (fruit orange) on two separate testing sessions, and subsequent snack intake was measured. Unrestrained non-dieters consumed similar amounts of snack food across conditions, whilst restrained dieters consumed 60% less chocolate (kcal) after exposure to the diet cue compared to the tempting cue. Exposure to a diet-congruent food cues may help dieters control energy intake when tempted by palatable food.