Calcium balance during human growth: Evidence for threshold behavior

Velimir Matkovic, Robert P. Heaney

Research output: Contribution to journalArticlepeer-review

286 Scopus citations


Calcium balances performed on 519 individuals from birth to 30 years of age, derived from 34 published reports, were pooled by age group and the relationship between intake and balance for each group was compared at both extremes of the intake range. At all ages, from infancy through the young adult years, balance values tended to flatten and become constant at higher intakes, while at lower intakes balance was invariably highly correlated with intake. Threshold intakes and balances were estimated by fitting the data to a two-component, split, linear-regression model. The threshold values at which balance no longer rose with intake exceeded the US recommended dietary allowances for calcium for all the age groups concerned.

Original languageEnglish (US)
Pages (from-to)992-996
Number of pages5
JournalAmerican Journal of Clinical Nutrition
Issue number5
StatePublished - May 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Nutrition and Dietetics


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