. 2020 Aug 16;12(8):2464. doi: 10.3390/nu12082464

Table 1.

Zinc dietary recommendation according to WHO/FAO, IOM and EFSA [8,9,10].

WHO/FAO				IOM		EFSA
Age, Sex	RNI (mg/Day)			Age, Sex	RDA (mg/Day)	Age, Sex	PRI (mg/Day)
Age, Sex	High^a	Moderate^b	Low^c	Age, Sex	RDA (mg/Day)	Age, Sex	PRI (mg/Day)
0–6 months	1.1^d	2.8^e	6.6^f	0–6 months	2 (AI)
7–12 months	0.8^d; 2.5^g	4.1	8.4	7–12 months	3	7–11 months	2.9
1–3 years	2.4	4.1	8.3	1–3 years	3	1–3 years	4.3
4–6 years	2.9	4.8	9.6	4–8 years	5	4–6 years	5.5
7–9 years	3.3	5.6	11.2	9–13 years	8	7–10 years	7.4
						11–14 years	9.4
10–18 years				14–18 years		15–17 years
Males	5.1	8.6	17.1	Males	11	Males	12.5
Females	4.3	7.2	14.4	Females	9	Females	10.4
≥19 years				≥19 years		≥18 years
Males	4.2	7.0	14.0	Males	11	Males
						300^h	9.4
						600^h	11.7
						900^h	14.0
						1200^h	16.3
Females	3.0	4.9	9.8	Females	8	Females
						300^h	7.5
						600^h	9.3
						900^h	11.0
						1200^h	12.7
Pregnancy				Pregnancy		Pregnancy	+1.6
1st trimester	3.4	5.5	11.0
2nd trimester	4.2	7.0	14.0	14–18 years	12
3rd trimester	6.0	10.0	20.0	19–50 years	11
Lactation				Lactation		Lactation	+2.6
0–3 months	5.8	9.5	19.0
3–6 months	5.3	8.8	17.5	14–18 years	13
6–12 months	4.3	7.2	14.4	19–50 years	12

^a high bioavailability of dietary zinc (50%); ^b moderate bioavailability of dietary zinc (30%); ^c low bioavailability of dietary zinc (15%); ^d exclusively human-milk-fed (bioavailability of zinc—80%); ^e infants fed whey-adjusted milk formula and to partly human-milk-fed or given low-phytate feeds supplemented with other liquid milks; ^f infants fed a phytate-rich vegetable protein-based formula with or without whole-grain cereals; ^g not applicable to infants consuming human milk only; ^h level of phytate intake (mg/day); AI—adequate intake; PRI—population reference intake; RDA—recommended dietary allowance; RNI—recommended nutrient intake.