Awon kokoro miiran to nfa arun tun le fa ona-ofun ti o ndun ni.. 
An organic Chemi Compound (or related set of comtyl) is called a vitamin When the OrganiSM cannot 0b013esize the compound in sufficient wọ̀, and must be obtained through the askẹ́; thus, the term "vitamin is ohun upon the circumstances and the ), OrganiSM.. 