Fuente: WIPO "tomato" In the present application, an agent for enhancing saltiness and/or umami of an oral ingestion product containing a component imparting saltiness and/or a component imparting umami, the agent containing one or two or more flavonoid components selected from naringenin, luteolin, pinocembrin, liquiritigenin, apigenin, and acacetin, or salts thereof, as an active ingredient, and the like are disclosed as embodiments thereof.