Abstract: A slow feeder includes a container for, in use, containing food for an animal. The container has a side wall through which a slot (26) is defined; and a feeding restrictor (6). The feeding restrictor (6) comprises a food-covering element through which at least one opening is defined for, in use, resting on top of the food such that the animal can access the food through the opening; a locating element which extends from the food-covering element through the slot; and a retaining element (34) extending from the locating element and movably engageable with an outer portion of the container. The engagement of the retaining element (34) with the outer portion of the container retains the restrictor (6) in the container.