Effective low salt diet for a salt‐sensitive hypertensive patient Different reduction rates between the morning SBP and the night SBP

Abstract

Hypertensive patients must reduce their salt intake.^1-5)   However, little is known about the quantitative relationship between personal salt intake and home blood pressure.⁶⁾   The author experienced brain infarctions upon hypertension three times.  After his first hospitalization, a 7 g/day salt diet recommended by the hospital was performed at home. Nonetheless, such a diet could not prevent further reoccurrences. Hence, a lower salt diet was required.  To know the proper salt intake, the fluctuations of data during a 7 g/day salt diet were utilized.  The r between the night SBP and daily salt intake was 0.662**. By the regression equation, suitable salt intake of 3.5 g/day corresponding to optimal SBP of 120 mmHg^7,17）was gained.  After 19 months of this salt diet, the night SBP decreased to the expected level of 120 mmHg.  The morning SBP took only 5 months to reach a homeostatic level of 132 mmHg.  Different reduction rates between both were characteristic. Moreover, the morning SBP was
influenced by salt of the previous day’s breakfast and lunch, and hardly by the previous day’s dinner.  Salty food was suggested to ingest at dinner. The 3.5 g/day salt diet was effective in preventing reoccurrences and met recent recommendations. ⁸⁾