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Nutrition and magnesium absorption: a review
1Department of Nutrition, Netherlands Institute for Dairy Research, Ede.
Progress in Food & Nutrition Science
|January 1, 1992
Summary
Dietary components significantly impact magnesium absorption. Protein and fructose enhance it, while cellulose and phytate reduce it, especially crucial at low magnesium intake levels.
Area of Science:
- Nutritional Science
- Gastroenterology
- Human Physiology
Background:
- Dietary components play a role in nutrient absorption.
- Magnesium is an essential mineral with complex absorption pathways.
- Understanding factors influencing magnesium absorption is vital for human health.
Purpose of the Study:
- To review the evidence on how dietary components affect intestinal magnesium absorption in humans.
- To elucidate the mechanisms and implications of these effects on magnesium balance.
Main Methods:
- Literature review of studies investigating dietary components and magnesium absorption.
- Analysis of human and animal studies to compare findings.
- Examination of the relationship between absorption, intake, and excretion.
Main Results:
- Protein and fructose increase apparent magnesium absorption.
- Cellulose and phytate decrease apparent magnesium absorption.
- Effects of lactose, fat, calcium, and phosphate on human magnesium absorption are inconclusive.
Conclusions:
- Dietary influences on magnesium absorption are most critical at low magnesium intakes.
- Homeostatic mechanisms like urinary excretion help regulate magnesium balance.
- Impaired absorption at low intakes can lead to magnesium deficiency.