Vitamins abubuwa ne masu mahimmanci don kiyaye rayuwa da lafiya.Abu ne mai mahimmanci don karnuka don kula da rayuwa, girma da haɓakawa, kula da ayyukan ilimin lissafi na al'ada da metabolism.Vitamins ba su da mahimmanci a cikin abinci na kare fiye da furotin, mai, carbohydrates da ma'adanai.Ko da yake bitamin ba tushen kuzari ba ne ko kuma babban sinadari da ke tattare da kyallen jikin jiki, aikinsu ya ta'allaka ne a cikin halayensu na halitta.Wasu bitamin sune tubalan ginin enzymes;wasu irin su thiamine, riboflavin, da niacin suna samar da coenzymes tare da wasu.Wadannan enzymes da coenzymes suna da hannu a cikin tsarin halayen sinadaran a cikin matakai daban-daban na rayuwa na kare.Saboda haka, yana taka muhimmiyar rawa a cikin metabolism na sunadarai, fats, carbohydrates, inorganic salts da sauran abubuwa a cikin jiki.