Nutrition is a basic human need to carry out functions. From nutritional needs and nutritional intake can produce nutritional status. Proper nutrition is needed to get good nutritional status to achieve optimal growth and development. Many factors can affect the nutritional status of a child, one of them is to give exclusive breastfeeding. The purpose of this study was to examine the relationship between exclusive breastfeeding and nutritional status in pre-school children at kindergarten Mutiara 17 Agustus Bekasi. The design of the research which was cross sectional study. The population and sample in this study were all children who studied at Kindergarten Mutiara 17 Agustus Bekasi in the 2018-2019 school year, it contained of 59 children with a total sampling technique. Measurement of the variables used a questionnaire and direct measurement of Weight and Height. The results showed that exclusive breastfeeding with nutritional status in children based on weight index had a value of p = 0,0001 (p value <0.05), exclusive breastfeeding with nutritional status in children based on the height index had a value of p = 0,0001 (p value <0.05), exclusive breastfeeding with nutritional status in children based on body mass index has a value of p = 0,0002 (p value <0.05). The conclusion of this study is that there is a relationship between exclusive breastfeeding and child nutritional status based on weight index, there is a relationship between exclusive breastfeeding and child nutritional status based on the height index, there is a relationship between exclusive breastfeeding and child nutritional status based on body mass index.

Keywords: Exclusive breastfeeding, nutritional status, preschool children