The invention improves the unpleasant taste characteristic of potassium salts without affecting the original flavor of foods or drinks and increases the value of potassium salt as a salt substitute, in order to provide means and a salt composition for reducing sodium in foods and drinks. By adding one or more of the following: quinic acid or a quinic acid-containing composition, spilanthol or a spilanthol-containing plant extract or plant essential oil, or an Allium plant extract, to a potassium salt or a potassium salt-containing food or drink, the unpleasant tastes such as acrid taste and metallic taste characteristic of potassium salts are improved while the salt flavor and taste are augmented.本發明係提供不影響飲食品原本的香味,改善鉀鹽特有的不愉快味道,進而提高鉀鹽作為食鹽代替品之價值,減少飲食品之鈉量的手段及食鹽組成物。藉由使奎尼酸或含奎尼酸之組成物、千日菊醯胺或含千日菊醯胺之植物萃取物或植物精油、蔥屬(Allium)植物萃取物之至少1種含於鉀鹽或含鉀鹽之飲食品中,可改善鉀鹽特有的鹼澀味或金屬味等之不愉快味道,進而增強鹽味及呈味。