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ever, for the other age groups, only fluoride and pantothenic acid AIs are based on intakes of apparently healthy populations.

TABLE F-1 Adequate Intake (AI) for Calcium

Life Stage Group

AI (mg/d)

Basis for AI

0–6 mo

210

Human milk content

7–12 mo

270

Human milk content + solid food

1–3 y

500

Extrapolation from AI for 4–8 y (desirable calcium retention)

4–8 y

800

Calcium balance, calcium accretion, ∆BMCb

9–18 y

1,300

Desirable calcium retention, ∆BMC, factorial

19–30 y

1,000

Desirable calcium retention, factorial

31–50 y

1,000

Calcium balance, BMDc



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