percent change in food intake percent change in food intake volume 2013-09-11T14:30:00Z A calculated measurement of the relative difference in the volume, i.e., the size of the three dimensional space occupied by the food (material, usually of plant or animal origin, that contains essential nutrients such as carbohydrates, fats, proteins, vitamins, and/or minerals and that is ingested and assimilated by an organism to produce energy, stimulate growth, and maintain life) taken in for utilization by the body, between a treated state and a control state or between two points in time, expressed as a percentage. CMO:0001779 JSmith clinical_measurement_ontology relative change in food intake volume calculated food intake volume measurement