6533b854fe1ef96bd12af2e5

RESEARCH PRODUCT

Calcium bioavailability in human milk, cow milk and infant formulas—comparison between dialysis and solubility methods

María Jesús LagardaAmparo AlegríaRosaura FarréMaría José Añón RoigReyes Barberá

subject

Calcium metabolismChemistryfood and beveragesIn vivo absorptionchemistry.chemical_elementGeneral MedicineCalciumAnalytical ChemistryBioavailabilityCow milkfluids and secretionsInfant formulaFood scienceSolubilityDialysis (biochemistry)Food Science

description

Abstract The percentages of total, soluble and dialysable calcium of human milk, cow milk and milk and soy based infant formulas were determined in order to detect possible differences in the calcium bioavailability of the samples. For this purpose an in vitro method was applied to these four calcium sources. The ranking of the analysed samples in terms of calcium bioavailability depends on the criteria applied. Calcium ranked dialysis percentage was: cow milk>human milk>soy based formula>milk based formulas. Calcium ranked solubility percentage was: human milk>cow milk>soy-based formula>milk-based formulas. Comparison of the results of the in vitro assay with the information available on in vivo calcium absorption showed that the total soluble calcium contents agree with the in vivo absorption values better than with calcium dialysis percentages.

https://doi.org/10.1016/s0308-8146(98)00232-5