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Meal effects on calcium absorption.

R P Heaney1, K T Smith, R R Recker

  • 1The Procter & Gamble Company, Miami Valley Laboratories, Cincinnati, OH.

The American Journal of Clinical Nutrition
|February 1, 1989
PubMed
Summary
This summary is machine-generated.

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Consuming a meal with calcium supplements, including calcium carbonate, milk, and a novel system (CCM), significantly boosts calcium absorption efficiency by 10-30%. This finding applies to both rats and humans, highlighting the importance of meal coingestion for better calcium uptake.

Area of Science:

  • Nutritional Science
  • Human Physiology
  • Biochemistry

Background:

  • Calcium is essential for bone health and numerous physiological functions.
  • Dietary calcium absorption efficiency can be influenced by various factors, including food matrix and coingestion.
  • Understanding optimal calcium delivery systems is crucial for preventing deficiencies.

Purpose of the Study:

  • To investigate the impact of coingestion with a meal on calcium absorption efficiency.
  • To compare the effects of different calcium sources (calcium carbonate, milk, CCM) when consumed with food.
  • To determine the statistical significance of meal coingestion on calcium bioavailability.

Main Methods:

  • Six experiments were conducted using 168 rats.
  • Two experiments involved 46 normal young women.

Related Experiment Videos

  • Calcium absorption efficiency was measured for calcium carbonate, milk, and a novel calcium delivery system (CCM) with and without a light meal.

    • Main Results:

    • Coingestion of a light meal significantly enhanced calcium absorption efficiency from all tested sources.
    • Absorption efficiency increased by 10-30% when calcium sources were consumed with a meal compared to without.
    • The observed enhancements in absorption were statistically significant across both animal and human studies.

    Conclusions:

    • Consuming calcium with a meal improves its absorption efficiency.
    • The tested calcium sources, including a new delivery system (CCM), all benefit from coingestion.
    • Meal coingestion is a key factor in optimizing dietary calcium bioavailability.