Bitamin B suna nufin rukunin bitamin masu narkewa da ruwa waɗanda ke da mahimmanci ga ayyuka daban-daban na jiki, gami da haɓaka makamashi, samuwar ƙwayoyin jan jini, da aikin tsarin juyayi. Akwai nau'ikan Bitamin B guda takwas: Thiamine (B1), Riboflavin (B2), Niacin (B3), Pantothenic acid (B5), Pyridoxine (B6), Biotin (B7), Folate (B9), da Cobalamin (B12). . Wadannan bitamin suna taka muhimmiyar rawa wajen kiyaye lafiyar jiki da kuma hana rashi da cututtuka daban-daban. Ana samun su ta dabi'a a cikin abinci da yawa, ciki har da nama, kifi, kaji, ƙwai, kayan kiwo, kayan lambu masu ganye, hatsi gabaɗaya, da hatsi masu ƙarfi.