This brief communication compares the analytic findings in peptic ulcer with those in obesity. The obses person, like the patient with ulcer, eats 'infantile foods', such as purées, pastes, milk, and cheese, and soft and fattening foods. 'Genital' feeding, however, is based on meats and other foods that require hard chewing. Some popular sayings support this distinction. It is also evident in certain religious beliefs, such as the Jewish custom of not mixing meat dishes with dairy dishes, and in poetic expressions that show genitality equated with eating meat, whereas puddings, custards, and cheeses are infantile oral gratifications.