TABLE S-4 Criteria and Dietary Reference Intake Values for Vitamin D by Life Stage Group

Life Stage Groupa

Criterion

AI (µg/day) b,c,d

0 through 6 months

Serum 25(OH)D

5

7 through 12 months

Serum 25(OH)D

5

1 through 3 years

Serum 25(OH)D

5

4 through 8 years

Serum 25(OH)D

5

9 through 13 years

Serum 25(OH)D

5

14 through 18 years

Serum 25(OH)D

5

19 through 30 years

Serum 25(OH)D

5

31 through 50 years

Serum 25(OH)D

5

51 through 70 years

Serum 25(OH)D

10

> 70 years

Serum 25(OH)D

15

Pregnancy

≤ 18 years

Serum 25(OH)D

5

19 through 50 years

Serum 25(OH)D

5

Lactation

≤ 18 years

Serum 25(OH)D

5

19 through 50 years

Serum 25(OH)D

5

aAll groups except Pregnancy and Lactation are males and females.

bAs cholecalciferol. 1 µg cholecalciferol = 40 IU vitamin D.

cAI = Adequate Intake. The experimentally determined estimate of nutrient intake by a defined group of healthy people. AI is used if the scientific evidence is not available to derive an EAR. For healthy infants fed human milk, AI is the estimated mean intake. Some seemingly healthy individuals may require higher vitamin D intakes to minimize risk of low serum 25(OH)D levels and some individuals may be at low risk on lower dietary intakes of vitamin D. The AI is believed to cover their needs, but lack of data or uncertainty in the data prevent being able to specify with confidence the percentage of individuals covered by this intake.

d In the absence of adequate exposure to sunlight.



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