“…7,8 In that study, images were acquired in the upright position at 0, 1, 2, and 4 h after meal ingestion; gastric retention of > 10% at 4 h is indicative of delayed emptying. [13][14][15][16][17] Since instant oatmeal is more palatable and widely commercialized, we hypothesized that it may serve as a practical and reliable test meal for gastric emptying studies. [9][10][11][12] In addition, a significant portion of patients in many Asian societies cannot eat egg-containing food due to religious or health reasons (i.e.…”