Comparison of Breast Milk Contents in Tandem Breastfeeding and Non-Tandem Breastfeeding Mother

There are studies on the concentration of macronutrients in breast milk in the literature A few studies have examined macronutrients in breast milk in mothers who breastfeed in tandem. Sinkiewicz-Darol et al. (2021) in his study; Macronutrients in breast milk in mothers who breastfeed in tandem have been studied. Breast milk during tandem breastfeeding had higher fat content, energy value, and total protein concentration than milk after weaning the older child. The carbohydrate content remained constant. In the study of Rosenberg et al., (2021), the concentration of macronutrients in breast milk was investigated in tandem breastfeeding and non-tandem breastfeeding mothers. As a result, it was determined that breast milk produced during pregnancy has different macronutrient content than breast milk produced after birth. It was determined that colostrum and mature milk of mothers who breastfed in tandem were similar to the milk of mothers who did not breastfeed in tandem, except for the carbohydrate content. Breastfeeding and tandem breastfeeding during pregnancy have not been extensively studied. For this reason, our study will determine the effect of tandem breastfeeding on the macronutrient content of breast milk and will provide evidence for tandem breastfeeding, which is traditionally practiced by many women.

1.2 Purpose of Research The aim of this study; The aim of this study is to compare the breast milk contents of tandem breastfeeding and non-tandem breastfeeding mothers.

2. METHODS and MATERIALS 2.1. Type of Research The research was planned as an experimental study with a single center control group.

2.2. Place of Research The place where the research will be carried out is the Lactation/Relactation polyclinic and gynecology and obstetrics polyclinic of Çamlıca Medipol University Hospital and Halil Şıvgın Çubuk State Hospital.

2.3. Sample of the Research The population of the study will be tandem breastfeeding and non-tandem breastfeeding mothers who applied to the Lactation/Relactation outpatient clinic of Çamlıca Medipol University Hospital and Halil Şıvgın Çubuk State Hospital, and the obstetrics and gynecology outpatient clinics. Power analysis was performed to determine the number of samples. For this purpose, the study results of Rosenberg et al. (2021) (Experiment: 8.1±0.2 Control:6.2±1.5) were used as reference. According to the power analysis made by calculating the effect size, the sample size calculated with α= 0.01 error level and 99% power; 18 women in the experimental group and 18 women in the control group, a total of at least 36 women. The analysis was performed in G*Power version 3.1.9.4.