Abstract
We studied the salt taste change during pregnancy and investigated its meaning in normal pregnancy and preeclampsia female in salt restriction. 40 normal pregnant female, 35 pregnant female with preeclampsia and 64 healthy non-pregnant female were recruited to this study. Gustatory test was performed with the filter-paper disk method. Salt solutions, 0.1, 0.2, 0.4, 0.6, 0.8 and 1.0 weight % were made from reagent grade sodium chloride and distilled water. The threshold of salt taste in pregnant female was higher than that of non-pregnant female. The threshold of salt taste in preeclampsia female was higher than that of pregnant female. The threshold of salt taste in normal pregnant female was correlated with their weight gain during pregnancy however that in preeclampsia female was not correlated. The threshold of salt taste was decreased and the symptom of preeclampsia was improved when preeclampsia female took the salt restriction diet therapy. It is suggested that the change of salt taste was related to the increased need of sodium according to progress of normal pregnancy, and was also related to the improvement of the symptoms of preeclampsia in salt restriction. The salt taste may be an objective indicator of salt intake for preeclampsia.
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