Relationship Between Maternal Age and Macronutrient Content of Colostrum

Area of Science:

• Human milk composition
• Maternal health
• Infant nutrition

Background:

• The relationship between maternal age and colostrum's macronutrient profile is not well understood.
• Colostrum is the first milk produced by mothers, crucial for infant nutrition.

Purpose of the Study:

• To investigate the association between maternal age and the macronutrient content (lactose, protein, lipids) of colostrum.
• To compare colostrum composition across different maternal age groups: younger (<20 years), moderate (20-34 years), and advanced (>34 years).

Main Methods:

• An observational, cross-sectional study involving 99 participants (33 per age group).
• Colostrum samples were collected 39-48 hours postpartum and analyzed for macronutrient concentrations using a Miris Human Milk Analyzer.
• Statistical analysis employed analysis of variance (ANOVA) to compare groups, with P < 0.05 considered significant.

Main Results:

• Mothers of moderate maternal age exhibited significantly higher colostrum lipid concentrations compared to younger and advanced maternal age groups (p=0.007).
• No significant differences in lactose or protein content were observed among the maternal age groups.

Conclusions:

• Maternal age is a factor that can influence lipid concentrations in colostrum.
• Findings suggest that human milk may adapt its nutritional components based on maternal age, potentially benefiting infant needs.