In an aspect, an eating utensil includes a controllable odorant emitter for delivering an odorant to a person who is eating or drinking from the eating utensil. The odorant may be delivered orthonasally or retronasally. The odorant may be used to stimulate or suppress appetite. In an aspect, a controllable odorant emitter is provided in an attachment that may be removably secured to an eating utensil. Related methods and systems for delivering odorant in connection with use of an eating utensil are described.