Reduction of amount of salt intake is claimed to be one of the way to prevention of hypertension or cerebrovascular diseases. While the amount of salt intake is considered, the other nutrients in food are ignored. Amount of nutrients taken from the food containing one gram salt is calculated using the 4th edition of Japanese Food Composition Table for the Japanese foods popularly consumed. Miso-soup and salted foods are said that they are the source of salt in the Japanese diet, but, at the same time, the mean nutrient-values of miso-soup, which are calculated from 3, 888 meals, are very rich in protein, calcium, iron and vitamin A, and salted greens are well off for calcium. We have to consider not only for the salt, but also for the other nutrients of the foods and the survival value of our diet.