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Calcium requirements for bone growth in Canadian boys and girls during adolescence.
Br J Nutr 2010; 103(4):575-80BJ

Abstract

Adequate dietary intake during the growth period is critical for bone mineral accretion. In 1997, an adequate intake (AI) of 1300 mg/d Ca was set for North American adolescents aged 9-18 years based on best available data. We determined bone Ca accrual values from age 9 to 18 years taking into account sex and maturity. Furthermore, we used the accrual data to estimate adolescents' Ca requirements. Total body bone mineral content (TBBMC) of eighty-five boys and sixty-seven girls participating in the Saskatchewan Paediatric Bone Mineral Accrual Study were used to determine annual TBBMC accumulation over the pubertal growth period. Using a similar factorial approach as the AI, we estimated Ca requirements of adolescent boys and girls for two age groups: 9-13 and 14-18 years. Between 9 and 18 years, boys accrued 198.8 (SD 74.5) g bone mineral content (BMC) per year, equivalent to 175.4 (SD 65.7) mg Ca per d with the maximum BMC accrual of 335.9 g from age 13 to 14 years. Girls had 138.1 (SD 64.2) g BMC per year, equalling121.8 (SD 56.6) mg Ca per d with the maximum annual BMC accrual of 266.0 g from age 12 to 13 years. Differences were observed between both sex and age groups with respect to Ca needs: boys and girls aged 9-13 years would require 1000-1100 mg/d Ca, and from age 14 to 18 years, the mean Ca requirements would be relatively stable at 1000 mg/d for girls but would rise to 1200 mg/d for boys.

Authors+Show Affiliations

College of Pharmacy and Nutrition, University of Saskatchewan, 110 Science Place, Saskatoon, SK, Canada S7N 5C9.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19852873

Citation

Vatanparast, Hassanali, et al. "Calcium Requirements for Bone Growth in Canadian Boys and Girls During Adolescence." The British Journal of Nutrition, vol. 103, no. 4, 2010, pp. 575-80.
Vatanparast H, Bailey DA, Baxter-Jones AD, et al. Calcium requirements for bone growth in Canadian boys and girls during adolescence. Br J Nutr. 2010;103(4):575-80.
Vatanparast, H., Bailey, D. A., Baxter-Jones, A. D., & Whiting, S. J. (2010). Calcium requirements for bone growth in Canadian boys and girls during adolescence. The British Journal of Nutrition, 103(4), pp. 575-80. doi:10.1017/S0007114509992522.
Vatanparast H, et al. Calcium Requirements for Bone Growth in Canadian Boys and Girls During Adolescence. Br J Nutr. 2010;103(4):575-80. PubMed PMID: 19852873.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Calcium requirements for bone growth in Canadian boys and girls during adolescence. AU - Vatanparast,Hassanali, AU - Bailey,Donald A, AU - Baxter-Jones,Adam D G, AU - Whiting,Susan J, Y1 - 2009/10/26/ PY - 2009/10/27/entrez PY - 2009/10/27/pubmed PY - 2010/3/5/medline SP - 575 EP - 80 JF - The British journal of nutrition JO - Br. J. Nutr. VL - 103 IS - 4 N2 - Adequate dietary intake during the growth period is critical for bone mineral accretion. In 1997, an adequate intake (AI) of 1300 mg/d Ca was set for North American adolescents aged 9-18 years based on best available data. We determined bone Ca accrual values from age 9 to 18 years taking into account sex and maturity. Furthermore, we used the accrual data to estimate adolescents' Ca requirements. Total body bone mineral content (TBBMC) of eighty-five boys and sixty-seven girls participating in the Saskatchewan Paediatric Bone Mineral Accrual Study were used to determine annual TBBMC accumulation over the pubertal growth period. Using a similar factorial approach as the AI, we estimated Ca requirements of adolescent boys and girls for two age groups: 9-13 and 14-18 years. Between 9 and 18 years, boys accrued 198.8 (SD 74.5) g bone mineral content (BMC) per year, equivalent to 175.4 (SD 65.7) mg Ca per d with the maximum BMC accrual of 335.9 g from age 13 to 14 years. Girls had 138.1 (SD 64.2) g BMC per year, equalling121.8 (SD 56.6) mg Ca per d with the maximum annual BMC accrual of 266.0 g from age 12 to 13 years. Differences were observed between both sex and age groups with respect to Ca needs: boys and girls aged 9-13 years would require 1000-1100 mg/d Ca, and from age 14 to 18 years, the mean Ca requirements would be relatively stable at 1000 mg/d for girls but would rise to 1200 mg/d for boys. SN - 1475-2662 UR - https://www.unboundmedicine.com/medline/citation/19852873/Calcium_requirements_for_bone_growth_in_Canadian_boys_and_girls_during_adolescence_ L2 - https://www.cambridge.org/core/product/identifier/S0007114509992522/type/journal_article DB - PRIME DP - Unbound Medicine ER -