Immediate effect of food intake by the nursing mother on the macronutrient content of colostrum

IF 2.5 4区医学 Q1 PEDIATRICS Jornal de pediatria Pub Date : 2025-07-01 Epub Date: 2025-04-03 DOI:10.1016/j.jped.2025.03.004

Regina C.F.A. Nascimento , Virgínia G.A. Hochman , Camila B.M. da Silva , Bernardo V. do Valle , Yasmin N.di V. do Amaral , Manuela Dolinsky , Alan A. Vieira

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Abstract

Objective

Human milk has a dynamic composition that is ideal for the needs of infants. However, the factors that affect the nutritional content of human milk are still unclear. This study aimed to evaluate the immediate effect of maternal food intake (lunch) on the macronutrient composition of colostrum.

Methods

This prospective study performed a paired analysis of macronutrient concentrations in the colostrum of healthy postpartum women. Three milliliters of colostrum were collected from 65 participants 30 min before and 2 h after a meal (lunch) by manual expression. The nutritional content of the meal was similar for all mothers. Colostrum analysis was performed using a Human Milk Analyzer (Miris®).

Results

The fat content was significantly higher in colostrum samples collected 2 h after lunch than in those collected 30 mins before lunch (2.3 ± 1.1 vs. 2.8 ± 1.4 g %, p = 0.002). No significant differences were observed in the protein (1.9 ± 0.7 vs. 1.9 ± 1.0) and carbohydrate (6.4 ± 0.8 vs. 6.4 ± 0.8) content.

Conclusions

Two hours after the mother had lunch, the colostrum fat concentration increased by 20 %.

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哺乳母亲摄入食物对初乳中宏量营养素含量的直接影响。

目的：人乳具有一种动态成分，非常适合婴儿的需要。然而，影响母乳营养成分的因素仍不清楚。本研究旨在评估母体食物摄入（午餐）对初乳宏量营养素组成的直接影响。方法：这项前瞻性研究对健康产后妇女初乳中的常量营养素浓度进行了配对分析。在65名参与者的餐前（午餐）30 min和餐后（午餐）2 h，采用人工表达法采集初乳3毫升。这顿饭的营养成分对所有母亲来说都是相似的。使用人乳分析仪（Miris®）进行初乳分析。结果：午餐后2 h采集的初乳样品脂肪含量显著高于午餐前30 min采集的初乳样品（2.3 ± 1.1 vs.）。2.8 ± 1.4 g %,p = 0.002)。蛋白含量(1.9 ± 0.7 vs。1.9 ± 1.0)和碳水化合物(6.4 ± 0.8 vs.； 6.4±0.8 )内容。结论：母亲午餐后2小时，初乳脂肪浓度增加20% %。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Jornal de pediatria 医学-小儿科

CiteScore

5.60

自引率

3.00%

发文量

审稿时长

43 days

期刊介绍： Jornal de Pediatria is a bimonthly publication of the Brazilian Society of Pediatrics (Sociedade Brasileira de Pediatria, SBP). It has been published without interruption since 1934. Jornal de Pediatria publishes original articles and review articles covering various areas in the field of pediatrics. By publishing relevant scientific contributions, Jornal de Pediatria aims at improving the standards of pediatrics and of the healthcare provided for children and adolescents in general, as well to foster debate about health.