An organic chemical compound (or related set of compounds) is called a vitamin when the organism cannot synthesize the compound in sufficient quantities, and must be obtained through the diet; thus, the term "vitamin" is conditional upon the circumstances and the particular organism.. 
Laarin awon ti o ni ewu àìjẹ́ oúnjẹ tòye lowo awon iṣoro itoju ilera miiran laarin ile-iwosan ni a bọ̀wọ̀lu.. 