Persian cat

　　If deficient, it can make cats sick and cause death.

　　There are many types of vitamins. Cats can synthesize some vitamins in their bodies, but some vitamins cannot be synthesized or are synthesized insufficiently and must be supplied by feed. Because animal feed contains abundant vitamins, generally cats do not lack vitamins. However, during pregnancy and lactation or illness, the body's vitamin demand increases or synthesis ability decreases, so appropriate vitamin supplements should be added to the feed. (Source：PetsZone)