Hydrolyzed protein cat foods are available from a number of different pet food manufacturers. Veterinarians often recommend prescription diets made by Hill’s, Royal Canin, or Purina Pro Plan.

Royal Canin sells breed and life stage tailored nutritional dog and ... corn starch, hydrolyzed poultry by-products aggregate and coconut oil. Guaranteed 17% minimum crude protein.

Hydrolyzed protein dog food is one type of prescription diet ... secondary to transitioning to the new diet too quickly.