A kit of parts for a feeder has a body and a bung that can slide within the body. A periphery of the bung can form a sliding seal between that periphery and the internal side walls of the body. A base cap has an aperture and is mountable at a lower end of the body to substantially occlude that end and allow airflow through the aperture into the body as the bung moves away. The kit has a teat mouthpiece for liquid foods, a sipper mouthpiece for pureed food, and a spout mouthpiece for mashed food and a pump attachment. The pump attachment has a pump and a spoon. The pump has a pump bung which moves reciprocatingly within the body and forms a sliding seal with the internal side walls. A valve allows food to flow from the feeder but prevents the flow of food into the feeder.