Kidneys are a major source of readily available zinc and a richer source than muscle meat. Zinc from animal sources is also better absorbed in comparison to zinc from plant foods.

Vitamin B3 helps to remove toxic and harmful chemicals from your dog’s body. It also helps improve circulation.

Cats are unable to produce enough B3 therefore they need to obtain more from their diet. Liver, Kidney, poultry and fish treats are a great treat for cats as well as dogs.