Cats generally require higher levels of certain B vitamins than dogs.
A deficiency in these vitamins can cause anemia, poor haircoat and lack of appetite. Unlike dogs, cats also require turine, an essential amino acid. A deficiency in taurine can lead to reproductive problems and blindness. However, premium foods that are designed for kitten growth and feline maintenance supply all the needed vitamins and minerals to sustain normal growth, provided the kitten or cat eats it well. It is always best to consult a veterinarian before feeding any supplements to your pet.