According to research, the daily required dosage of sodium is a minuscule 0.5 to 0.8 grams per day. (An ordinary teaspoon of MSG contains about 0.4 grams.)
根據實驗，人體中一天所需的鈉離子只需極少的○．五到○．八公克（普通烹調時調味用的標準小茶匙一匙味精約含○．四公克鈉）。