The present invention relates to a dry dog food, characterized in that it has the shape of a parallelepiped having dimensions from 29 to 40 mm.times.29 to 40 mm.times.19 to 30 mm. The invention also relates to the use of such a food for slowing down the speed of ingestion of foods by dogs, or as veterinary medicament or additive, in particular for its use in improving dentibuccal hygiene in dogs.