Liver: Safe for Dogs and Cats?

Small, occasional amounts of liver are fine, but liver is extremely rich in vitamin A and regular or excessive feeding can cause vitamin A toxicity over time.

Toxic principle: Hypervitaminosis A (vitamin A toxicity) from chronic overconsumption of liver

Small amounts of liver are nutritious, but cats are more prone than dogs to vitamin A toxicity, especially growing kittens fed liver-heavy diets.

Toxic principle: Hypervitaminosis A (vitamin A toxicity), more commonly seen in cats than dogs