Biological availability of calcium, magnesium and phosphorus from some infant and weaning foods
1981
The bioavailability of calcium, magnesium and phosphorus in infant formula and baby foods from local Indian markets was studied using weanling albino rats. Each product was fed to 4 rats for a 7 day duration period; animals received an amount equivalent to 40 mg calcium, with a supplemental protein-free diet to add calories if needed. Urine and feces were collected and analyzed. Results show that minerals were utilized less well from infant formula than from cow's milk. Calcium retention factors for cow's milk, amul spray, sapan, indec and lever spray were 0.865, 0.799, 0.752, 0.733 and 0.730 respectively. Balamul was found to be the best source of minerals among baby foods. Available calcium/100 g baby food was 659, 553, 449, and 188 mg in balamul, farex, nestum-rice, soy-whey, nestum-all family cereal, and cerelac, respectively. Available magnesium and phosphorus quantities also are stated. (rkm)
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