Using Bomb Calorimetry to Investigate Intestinal Energy Harvest in Anorexia Nervosa: Preliminary Findings on Stool Calorie Loss.

Objective: Renourishment and weight restoration are critical first steps in anorexia nervosa (AN) treatment. The ability of the gastrointestinal tract to harvest and utilize energy from food is essential for successful weight restoration, but the functional capacity of the intestine after prolonged caloric restriction remains unknown. In an exploratory study, we quantified the stool energy content of individuals with AN before and after renourishment.