Table 1.

Recommended intake of indispensable amino acids (in mg/kg body weight/day) for humans in different age groups (data from [27,30,32]).

Age (Years)	His	Ile	Leu	Lys	SAA *	AAA **	Thr	Trp	Val
0.5–1	22	36	73	64	31	59	34	9.5	49
1–2	15	27	54	45	22	40	23	6.4	36
3–10	12	23	44	35	18	30	18	4.8	29
11–14	12	22	44	35	17	30	18	4.8	29
15–18	11	21	42	33	16	28	17	4.5	28
>18	10	20	39	30	15	25	15	4.0	26

* SAA = Sulphur-containing amino acids (Cys + Met); ** AAA = Aromatic amino acids (Phe + Tyr).