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TABLE 5-2 Calcium Intake Estimated to Achieve Average Bone Calcium Accretion for Children and Adolescents Using the Factorial Method

Study Author, Year

Age/Gender

Average Calcium Accretion (mg/day)

Urinary Losses (mg/day)

Endogenous Fecal Calcium Losses (mg/day)

Sweat Losses (mg/day)

Total Needed (mg/day)

Absorption (percent)

Estimated Total Intake (Adjusted for Absorption)

Lynch et al., 2007

1–3 Male/Female

142

34

40

216

45.6

474

Abrams et al., 1999; Ames et al., 1999

4–8 Male/Female

140–160

40

50

240

30.0

800

Vatanparast et al., 2010

9–13 Female

151

106

112

55

424

38.0

1,116

9–13 Male

141

127

108

55

465

38.0

1,224

14–18 Female

92

106

112

55

365

38.0

961

14–18 Male

210

127

105

55

500

38.0

1,316

9–18 Female

121

106

112

55

394

38.0

1,037

9–18 Male

175

127

108

55

465

38.0

1,224



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