PROBLEM TO BE SOLVED: To redress body odor derived from an acid substance which is one origin of body odor.SOLUTION: The body odor derived from an acid substance which is one origin of body odor is neutralized by orally taking sodium citrate, potassium citrate or a combination thereof, where a bicarbonate ion of the metabolite acts as a base in the living body, and neutralizes the acid substance of body odor origin by an acid/base reaction.COPYRIGHT: (C)2013,JPO&INPIT【課題】体臭の原因の一つである酸性物質由来の体臭を改善する。【解決手段】体臭の原因の一つである酸性物質由来の体臭を、クエン酸ナトリウム、クエン酸カリウム、及びこれらの合剤の内服により代謝産物の重炭酸イオンが生体内で塩基として作用し酸塩基反応で体臭原因の酸性物質を中和して体臭を改善する。