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TABLE K-1 DRIs: Estimated Average Requirements for Groups

Life-Stage Group

CHO (g/d)

Protein (g/d)

Vitamin A (µg/d)a

Vitamin C (mg/d)

Vitamin E (mg/d)b

Thiamin (mg/d)

Riboflavin (mg/d)

Niacin (mg/d)c

Vitamin B6 (mg/d)

Folate (µg/d)d

Vitamin B12 (µg/d)

Copper (µg/d)

Iodine (µg/d)

Iron (mg/d)

Magnesium (mg/d)

Molybdenum (µg/d)

Phosphorus (mg/d)

Selenium (µg/d)

Zinc (mg/d)

Children

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-8 yr

100

15

275

22

6

0.5

0.5

6

0.5

160

1.0

340

65

4.1

110

17

405

23

4.0

Males

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9–13 yr

100

27

445

39

9

0.7

0.8

9

0.8

250

1.5

540

73

5.9

200

26

1,055

35

7.0

14–18 yr

100

44

630

63

12

1.0

1.1

12

1.1

330

2.0

685

95

7.7

340

33

1,055

45

8.5

Females

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9–13 yr

100

28

420

39

9

0.7

0.8

9

0.8

250

1.5

540

73

5.7

200

26

1,055

35

7.0

14–18 yr

100

38

485

56

12

0.9

0.9

11

1.0

330

2.0

685

95

7.9

300

33

1,055

45

7.3

Pregnant

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14–18 yr

135

50

530

66

12

1.2

1.2

14

1.6

520

2.2

785

160

23

335

40

1,055

49

10.5

Lactating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14–18 yr

160

60

885

96

16

1.2

1.3

13

1.7

450

2.4

985

209

7

300

35

1,055

59

10.9

NOTE: This table presents Estimated Average Requirements (EARs), which serve two purposes: they are used to assess the adequacy of population intakes and as the basis for calculation of the Recommended Dietary Allowances for individuals for those nutrients. EARs have not been established for vitamin D, vitamin K, pantothenic acid, biotin, choline, calcium, chromium, fluoride, manganese, or other nutrients not yet evaluated by the DRI process. CHO = carbohydrates; g/day = grams per day; mg/day = milligrams per day; μg/d = micrograms per day.

aAs retinol activity equivalents (RAEs). 1 RAE = 1 µg retinol, 12 µg β-carotene, 24 µg α-carotene, or 24 μg-βcryptoxanthin. The RAE for dietary provitamin A carotenoids is two-fold greater than retinol equivalents (RE), whereas the RAE for preformed vitamin A is the same as RE.

bAs α-tocopherol. α-Tocopherol includes RRR-α-tocopherol, the only form of α-tocopherol that occurs naturally in foods, and the 2R-stereoisomeric forms of α-tocopherol (RRR-, RSR-, RRS-, and RSS-α-tocopherol) that occur in fortified foods and supplements. It does not include the 2S-stereoisomeric forms of α-tocopherol (SRR-, SSR-, SRS-, and SSS-α-tocopherol), also found in fortified foods and supplements.

cAs niacin equivalents; 1mg of niacin = 60mg of tryptophan.

dAs dietary folate equivalents (DFE); 1 DFE = 1 µg food folate = 0.6 µg of folic acid from fortified food or as a supplement consumed with food = 0.5 µg of a supplement taken on an empty stomach.

SOURCE: IOM, 2006.



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