Essential and indispensable amino acids

Amino acids that our body can synthesize itself are called non-essential, dispensable.

Amino acids, which we must take in food, are essential, indispensable.
 * Essential amino acids
 * branched: Val, Leu, Ile;
 * aromatic: Phe, Trp;
 * basic: Lys;
 * containing sulphur: Met;
 * with a hydroxyl group: Thr.
 * Conditionally essential amino acids
 * Arg, His.
 * Non-essential amino acids
 * Gly, Ala, Ser, Pro, Cys, Tyr, Asn, Gln, Asp, Glu.