Table: Guidelines for Daily Intake of Trace Minerals-MSD Manual Professional Edition

Guidelines for Daily Intake of Trace Minerals

Category	Age (year*) or Time Frame			Fluoride (mg)	Iodine (mcg)	Iron (mg)		Molybdenum (mcg)	Selenium (mcg)	Zinc (mg)
Recommended daily intake
Infants	0.0–6 mo	0.2	200	0.01	110	0.27	0.003	2	15	2
7 mo–1 yr	5.5	220	0.5	130	11	0.6	3	20	3
Children	1–3	11	340	0.7	90	7	1.2	17	20	3
4–8	15	440	1	90	10	1.5	22	30	5
Males	9–13	25	700	2	120	8	1.9	34	40	8
14–18	35	890	3	150	11	2.2	43	55	11
19–30	35	900	4	150	8	2.3	45	55	11
31–50	35	900	4	150	8	2.3	45	55	11
51+	30	900	4	150	8	2.3	45	55	11
Females	9–13	21	700	2	120	8	1.6	34	40	8
14–18	24	890	3	150	15	1.6	43	55	9
19–30	25	900	3	150	18	1.8	45	55	8
31–50	25	900	3	150	18	1.8	45	55	8
51+	20	900	3	150	8	1.8	45	55	8
Pregnant 14–18	29	1000	3	220	27	2.0	50	60	12
Pregnant 19–30	30	1000	3	220	27	2.0	50	60	11
Pregnant 31–50	30	1000	3	220	27	2.0	50	60	11
Breastfeeding 14–18	44	1300	3	290	109	2.6	50	70	13
Breastfeeding 19–30	45	1300	3	290	9	2.6	50	70	12
Breastfeeding 31–50	45	1300	3	290	9	2.6	50	70	12
* * Except where noted differently.
NOTE: Recommended dietary allowances (RDAs) are shown in regular type. RDAs are set to meet the needs of 97 to 98% of people in a group. Adequate intakes (AIs) are shown in bold type. For healthy breastfed infants, AIs are the mean intake. For other groups, AIs are amounts believed to meet the needs of all people in the group, but because of lack of data, the percentage of people covered cannot be specified with confidence.
NR = not recommended; ND = not determinable because of lack of data, so sources of intake should be limited to foods.
Adapted from Dietary Reference Intakes (DRIs): Recommended Dietary Allowances and Adequate Intakes, Elements, Food and Nutrition Board, National Academies, 2019.

Category

Age (year*) or Time Frame

Fluoride (mg)

Iodine (mcg)

Iron (mg)

Molybdenum (mcg)

Selenium (mcg)

Zinc (mg)

Recommended daily intake

Infants

0.0–6 mo

0.2

200

0.01

110

0.27

0.003

7 mo–1 yr

5.5

220

0.5

130

0.6

Children

1–3

340

0.7

1.2

4–8

440

1.5

Males

9–13

700

120

1.9

14–18

890

150

2.2

19–30

900

150

2.3

31–50

900

150

2.3

51+

900

150

2.3

Females

9–13

700

120

1.6

14–18

890

150

1.6

19–30

900

150

1.8

31–50

900

150

1.8

51+

900

150

1.8

Pregnant 14–18

1000

220

2.0

Pregnant 19–30

1000

220

2.0

Pregnant 31–50

1000

220

2.0

Breastfeeding 14–18

1300

290

109

2.6

Breastfeeding 19–30

1300

290

2.6

Breastfeeding 31–50

1300

290

2.6

* * Except where noted differently.

NOTE: Recommended dietary allowances (RDAs) are shown in regular type. RDAs are set to meet the needs of 97 to 98% of people in a group.

Adequate intakes (AIs) are shown in bold type. For healthy breastfed infants, AIs are the mean intake. For other groups, AIs are amounts believed to meet the needs of all people in the group, but because of lack of data, the percentage of people covered cannot be specified with confidence.

NR = not recommended; ND = not determinable because of lack of data, so sources of intake should be limited to foods.

Adapted from Dietary Reference Intakes (DRIs): Recommended Dietary Allowances and Adequate Intakes, Elements, Food and Nutrition Board, National Academies, 2019.