Abstract: Nutritious rehydratable dehydrated food products which contain from about 10% to 35% fat and from 15% to 60% protein, are prepared by (1) comminuting or emulsifying a mixture of edible animal matter derivable from mammals, poultry and/or fish, and vegetable matter (including starch); (2) applying a thin layer of the comminuted mixture to the heated surface of a drum dryer; and (3) cooking and dehydrating the mixture on said drum dryer surface. The food product so formed contains no more than about 11% moisture, is in flake or powder form, and is rehydratable to at least three times its dried weight.