What It Does
Controls how your pet's eyes adjust to low light, and maintains the protective lining of skin, lungs, and gut. In dogs and cats, vitamin A also regulates cell growth and supports immune defense against infections.
What You’ll Notice
A dog or cat getting enough vitamin A will have clear, bright eyes and smooth, supple skin. Night vision stays sharp, and the coat has a healthy sheen.
Clear bright eyes
Smooth skin
Night blindness
Dry flaky skin
Sources & Notes
Liver, fish oil, eggs, dairy. Both excess and deficiency are harmful — balanced commercial diets provide the right amount.