A stomach model visual dieting aid includes a generally flexible three-dimensional model of the human stomach having at least length and width dimensions approximately equal to the dimensions of an actual average-sized human stomach and a stomach model storage container including an outer cover and a generally liquid-impervious inner liner mounted on the inner wall of the outer cover. The stomach model storage container is operative to receive and releasably retain the three-dimensional model of the human stomach therein with at least one of said three-dimensional model of the human stomach and the stomach model storage container being at least one of foldable, bendable and rollable to substantially decrease the size of the three-dimensional model of the human stomach when mounted within the stomach model storage container to facilitate transport thereof.