Off-taste suppressing agents for an oral product containing an off-taste substance added thereto, wherein the agent contains at least one compound selected from the group consisting of (A) a compound represented by the following formula (I): wherein each symbol is as defined in the present specification, (B) cyclotene, and (C) a fatty acid having a carbon atom number of 3 or 4 are capable of effectively suppressing off-tastes due to off-taste substances, and the like.