A Study on Salt Intake and Urinary Sodium Excretion by Groups Educated Regarding Low Salt Diet

일부 저염식 피교육자의 식염섭취 및 뇨중 Sodium 배설양상 -장류 및 김치류 등 고식염 함유 식품을 중심으로-

To estimate the amount of daily salt intake by source of food and urinary sodium excretion, a dietary survey was conducted from August 27th to September 3, 1980. The salt concentration of six kinds of food was measured. The families of 25 womens' club leaders and 25 families of hypertensive patients were studied after they had been given a short course of education on lowsalt diet. The results were as follows: 1. The average amount of high-salt foods eaten daily by the study group were as follows: 4.5 Gm. in the form of table salt 16.8 ml of home-made soy sauce 6.20 ml of commercial soy sauce 11.9 Gm. of home-made red-pepper bean paste 12.0 Gm. of home-made soy-bean paste 120.7 Gm. of Kimchi 2. The average NaCl concentration of each food was as follows: 99.5% in table salt, 22.5% in home made soy sauce, 11.9% in Commercial soy sauce, 6.8 Gm% in home made red pepper bean paste, 9.2 Gm% in home-made soy-bean paste and the average concentration of various kinds of Kimchi was 2.7 Gm%. 3. The total amount of daily salt intake per adult was calculated as 14.3 Gm. By sources of food 4.5 Gm from table salt, 3.9 Gm from home-made soy sauce and 3. 3 Gm from Kimchi were taken daily Three other kinds of food were also minor sources of salt intake.4. The average amounts of individual daily salt intake were not significantly different between the hypertensive group and the normotensive group: the median of the normotensive group (11.7Gm.) was significantly lower than that of the hypertensive group (14.9Gm.). Therefore the womens' club leaders appeared to respond more quickly than the hypertensive group after low-salt diet education. 5. The average amount of sodium excretion in the 24 hour urine specimen was 234.7 mEq. From this finding the daily NaCl intake was estimated to be 15.8Gm.