An Ecological Study of Changes in the Components of Human Milk during the Breast Feeding and the Relationships between the Dietary Behavior of Lactating Women and the Growth of Breast-fed Infants -II.A Study on the Lipids Content in Human Milk-

수유기간에 따른 모유의 성분 함량 변화와 수유부의 섭식 태도 및 영아의 성장 발육에 관한 생태학적 연구 II. 모유의 지질 함량에 관한 연구

Changes in total lipid content. total cholesterol content and fatty acid composition of human milk were investigated longitudinaly from 2-5 days to 12 weeks postpartum Milk samples were collected from 19 Korean lactating women at 2-5 days and at 1. 2. 4. 6. and 12 weeks postpartum. The obtained results were as follows : On average the daily energy intake protein intake and fat intake of Korean lactating women was 1812 kcal 72.5g and 29.8g respectively. The composition ratio of energy consis-ting of protein fat and carbohydrate was 16:15:69 The total lipid content increased from 1.39g/이 at 2-5 days to 2.86g/dl at 12 weeks ; while the total cholesterol concentration (mg/g) decreased significantly with time following postpartum. The total unsaturated fatty acids content was higher in colostrum than in mature milk. and the total saturated fatty acids were higher in mature milk. The average DHA content was 0.55% and the P/S ratio of human milk lipids was 0.37.