Chapter 070. Nutritional Requirements and Dietary Assessment (Part 3) doc

Nutritional Requirements and Dietary Assessment Part 3 Note: This table presents recommended dietary allowances RDAs in bold type and adequate intakes AIs in ordinary type.. RDAs are

Chapter 070 Nutritional Requirements

and Dietary Assessment

(Part 3)

Note: This table presents recommended dietary allowances (RDAs) in

bold type and adequate intakes (AIs) in ordinary type RDAs and AIs may both be

used as goals for individual intake RDAs are set to meet the needs of almost all individuals (97 to 98%) in a group For healthy breastfed infants, the AI is the mean intake The AI for other life stage and gender groups is believed to cover needs of all individuals in the group, but lack of data or uncertainty in the data prevent being able to specify with confidence the percentage of individuals covered by this intake

a

As retinol activity equivalents (RAEs) 1 RAE = 1 µg retinol, 12 µg β-carotene, 24 µg α-β-carotene, or 24 µg β-cryptoxanthin To calculate RAEs from retinol equivalents (REs) of provitamin A carotenoids in foods, divide the REs by

2 For preformed vitamin A in foods or supplements and for provitamin A carotenoids in supplements, 1 RE = 1 RAE

b

As calciferol 1 µg calciferol = 40 IU vitamin D

c

In the absence of adequate exposure to sunlight

d

As 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-α-tocopherol), also found in fortified foods

and supplements

e

As niacin equivalents (NE) 1 mg of niacin = 60 mg of tryptophan; 0–6 months = preformed niacin (not NE)

f

As dietary folate equivalents (DFEs) 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

g

Although AIs have been set for choline, there are few data to assess whether a dietary supply of choline is needed at all stages of the life cycle, and it may be that the choline requirement can be met by endogenous synthesis at some

of these stages

Because 10 to 30% of older people may malabsorb food-bound B12, it is advisable for those >50 years to meet their RDA mainly by consuming foods fortified with B12 or a supplement containing B12

i

In view of evidence linking inadequate folate intake with neural tube defects in the fetus, it is recommended that all women capable of becoming pregnant consume 400 µg from supplements or fortified foods in addition to intake

of food folate from a varied diet

j

It is assumed that women will continue consuming 400 µg from supplements or fortified food until their pregnancy is confirmed and they enter prenatal care, which ordinarily occurs after the end of the periconceptional period—the critical time for formation of the neural tube

Source: Food and Nutrition Board, Institute of Medicine—National

Academy of Sciences Dietary Reference Intakes, 2000, 2002, reprinted with permission Courtesy of the National Academy Press, Washington, DC http://www.nap.edu

Table 70-2 Dietary Reference Intakes: Recommended Intakes for

Individuals—Elements

ife-Stage

Grou

p

alciu

m,

mg/d

hromi

um,

µg/d

oppe

r, µg/d

luori

de, mg/d

odin

e, µg/d

ron, mg/

d

agnesi

um, mg/d

angan ese, mg/d

olybde num, µg/d

hosph orus mg/d

eleni

um, µg/d

inc, mg/

d

nfants

0–6

mo

10

0 2 00 01 10 27

3

0

0 003

00 5

7–12

mo

70

5 5 20 5 30 1

7

5

0 6

hildre

n

1–3 y 00 1 40 .7 0 0 2 7 60 0

4–8 y 00

1

1

30

1 5

2

2

5

00 0

ales

9–13

y

300

2

5 00 20

2

40

1 9

3

4

1

250 0

14–

18 y

300

3

5 90 50 1

4

10

2 2

4

3

1

250 5 1

19–

30 y

000

3

5 00 50

4

00

2 3

4

5

7

00 5 1

50 y

51–

70 y

200

3

0 00 50

4

20

2 3

4

5

7

00 5 1

>70 y 200

3

0 00 50

4

20

2 3

4

5

7

00 5 1

emale

s

9–13

y

300

2

1 00 20

2

40

1 6

3

4

1

250 0

14–

18 y

300

2

4 90 50 5

3

60

1 6

4

3

1

250 5

30 y

000

2

5 00 50 8

3

10

1 8

4

5

7

00 5

31–

50 y

000

2

5 00 50 8

3

20

1 8

4

5

7

00 5

51–

70 y

200

2

0 00 50

3

20

1 8

4

5

7

00 5

>70 y 200

2

0 00 50

3

20

1 8

4

5

7

00 5

regna

ncy

≤18 y 300 9 000 20 7 00 0 0 250 0 2

19–

30 y

000

3

0 000 20 7

3

50

2 0

5

0

7

00 0 1

31–

50 y

000

3

0 000 20 7

3

60

2 0

5

0

7

00 0 1

actati

on

≤18 y 300

4

4 300 90 0

3

60

2 6

5

0

1

250 0 3

19–

30 y

000

4

5 300 90

3

10

2 6

5

0

7

00 0 2

50 y

000

4

5 300 90

3

20

2 6

5

0

7

00 0 2

Note: This table presents recommended dietary allowances (RDAs) in bold

type and adequate intakes (AIs) in ordinary type RDAs and AIs may both be used

as goals for individual intake RDAs are set to meet the needs of almost all individuals (97 to 98%) in a group For healthy breastfed infants, the AI is the mean intake The AI for other life stage and gender groups is believed to cover needs of all individuals in the group, but lack of data or uncertainty in the data prevent being able to specify with confidence the percentage of individuals covered by this intake

Source: Food and Nutrition Board, Institute of Medicine—National

Academy of Sciences Dietary Reference Intakes, 2000, 2002, reprinted with permission Courtesy of the National Academy Press, Washington, DC http://www.nap.edu