Calcium requirements of lactating Gambian mothers: effects of a calcium supplement on breast-milk calcium concentration, maternal bone mineral content, and urinary calcium excretion

A Prentice, L M Jarjou, T J Cole, D M Stirling, B Dibba, S Fairweather-Tait

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The calcium requirement for prolonged lactation was investigated in a randomized supplementation study of Gambian mothers consuming a low-calcium diet (7.1 mmol/d, or 283 mg/d). Sixty women were studied from 10 d to 78 wk of lactation, receiving calcium or placebo for the first 12 mo. The supplement increased average calcium intake by 17.9 mmol/d (714 mg/d). Supplementation had no effect on breast-milk calcium concentration or on maternal bone mineral content. Urinary calcium output was higher in supplemented than in unsupplemented mothers by 1.18 mmol/d (47 mg/d), P
Original languageEnglish
Pages (from-to)58-67
Number of pages10
JournalAmerican Journal of Clinical Nutrition
Issue number1
Publication statusPublished - Jul 1995


  • Adolescent
  • Adult
  • Animals
  • Bone Density
  • Calcium
  • Calcium, Dietary
  • Double-Blind Method
  • Female
  • Food, Fortified
  • Gambia
  • Humans
  • Lactation
  • Longitudinal Studies
  • Milk
  • Nutritional Requirements

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