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[Phosphate concentration. Does reduction in infant formula feeding modify the micro-ecology of the intestine?]
1Universitäts-Kinderklinik und Poliklinik, Rostock.
Insights
Infant formula phosphate levels did not significantly alter gut bacteria. Breastfed infants showed lower fecal phosphate and fat excretion compared to formula-fed infants.
Area of Science:
- Pediatric Nutrition
- Microbiome Research
- Infant Gut Health
Context:
- Investigating the impact of dietary phosphate on infant gut microbiota composition and function.
- Comparing formula-fed infants (standard and low phosphate/protein) with breastfed infants.
- Assessing fecal excretion of phosphates and fats, and protein metabolism in infants.
Purpose:
- To determine if reduced phosphate concentrations in infant formula influence intestinal microflora.
- To compare the effects of different infant feeding methods (breast milk vs. formula) on gut bacteria and nutrient excretion.
- To analyze the relationship between protein intake and protein synthesis/breakdown rates in infants.
Summary:
- Reduced phosphate and protein in infant formula did not lead to increased bifidobacteria or decreased putrefactive bacteria.
- Fecal phosphate and fat excretion were significantly lower in breastfed infants compared to those fed either standard or low-phosphate formula.
- No significant correlation was found between protein intake and protein synthesis, breakdown rates, or net protein gain.
Impact:
- Provides insights into the impact of formula composition on infant gut microbiome development.
- Highlights differences in nutrient absorption and metabolism between breastfed and formula-fed infants.
- Informs potential adjustments in infant formula design for improved gut health and nutrient utilization.
Abstract:
The potential influence of phosphates in formulas on intestinal microflora was studied in 25 infants, aged 8 days to 12 weeks. The babies were either fed an infant formula with the usual phosphate concentration (n = 10) or an infant formula with reduced phosphate and protein concentrations (n = 7). The microbiological findings were compared with those obtained from breastfed infants (n = 8). Low-phosphate concentrations did not correlate with a predominance of bifidobacteria or suppression of putrefactive bacteria in the feces. The fecal excretion of phosphates and fat was found to be significantly lower with mother's milk compared to formulas both rich and poor in phosphate. Protein synthesis and breakdown rates, as well as the net protein gain, did not have a significant correlation with protein intake.