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Association of Lactation Period and Maternal Body Mass Index with Breast Milk Macronutrient Content of West Sumatera Breastfeeding Mothers

Early complementary foods in breastfed infant usually emerged by maternal perception of insufficient milk supply, breast milk content and maternal body composition. This early cessation will be affected to non-exclusive breastfeeding in first 6 months. In Indonesia, studies on breast milk were limited. Measurement of sufficient breast milk content and its correlation to maternal body mass index (BMI) aimed in this study to improve maternal confidence in maintaining exclusive breastfeeding. A cross-sectional study was conducted in several Public Health Centre in Padang, West Sumatera. Breast milk of mid-feed expression of one side breast from 145 breastfeeding mothers at 17-210 days postpartum was collected at 9:00 a.m. to 11:00 a.m. Total energy was analyzed using a MIRIS® human milk analyzer, which was based on a mid-infrared transmission spectroscopy technique. We measured the weight and height of mothers for calculating BMI. Statistical analyses were carried out using statistical software. A p-value <0.05 was considered as statistically significant. Breast milk energy was 67,21+11,76 kcal/dl. The mean maternal BMI was 24.17+ 6,35 kg/m2. There was no significant association between lactation period with breast milk energy, fat, carbohydrate and protein content. (p=0.486, p=0.137, p=0.712, p=0.338, respectively). There was no significant association between breast milk energy, fat, carbohydrate, and protein content to maternal BMI. (p=0,568, p=0,115, p=0.095, p=0,150, respectively). Breast milk content was constant during seven months of the lactation period. Breast milk content was not associated with maternal BMI.