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Calcium absorption: effect of meal and glucose polymer
M S Sheikh1, C A Santa Ana, M J Nicar
1Department of Internal Medicine, Baylor University Medical Center, Dallas, TX.
The American Journal of Clinical Nutrition
|August 1, 1988
Summary
Calcium absorption from calcium carbonate supplements is not significantly affected by consuming a mixed meal or glucose polymer with food. This study investigated calcium (Ca) absorption in healthy adults under various dietary conditions.
Area of Science:
- Nutrition Science
- Gastroenterology
- Human Physiology
Background:
- Certain dietary components like glucose can enhance gastrointestinal calcium absorption experimentally.
- The impact of mixed meals and glucose polymers on calcium (Ca) absorption from supplements remains unclear.
Purpose of the Study:
- To determine if a mixed meal enhances Ca absorption from calcium carbonate supplements.
- To investigate the effect of glucose polymer on Ca absorption when consumed with food.
Main Methods:
- A single-day method was used to measure net Ca absorption from calcium carbonate.
- Eight healthy subjects received a 500-mg elemental Ca dose under three conditions: fasting, with a meal, and with a meal plus 50g glucose polymer.
Main Results:
- Mean net Ca absorption was 195 mg fasting, 213 mg with a meal, and 179 mg with a meal plus glucose polymer.
- No statistically significant differences in Ca absorption were observed between the conditions.
Conclusions:
- A mixed meal does not significantly enhance calcium (Ca) absorption from calcium carbonate supplements in healthy individuals.
- Ingesting 50g of glucose polymer with food also does not significantly alter Ca absorption from calcium carbonate.