The inventors of this invention have conducted the search for most ofvariational compounds which may possess a desired CaSR agonist activity tothusfind out a substance capable of imparting a kokumi, which shows a moreexcellentkokumi-imparting effect, in particular, a kokumi-imparting effect of theinitialtaste-imparting type one, which is excellent in the stability and which caneasily beproduced at a low cost and the present invention thus provide a kokumi-impartingagent consisting of such a substance as well as a complex kokumi-impartingagentcomprising the substance and other substances possessing the CaSR agonistactivities in combination.More particularly, the present invention herein provides akokumi-imparting agent consisting of .gamma. -Glu-Nva (L- .gamma. -glutamyl-L-norvaline) anda complex kokumi-imparting agent comprising the foregoing substance andanother substance having a CaSR agonist activity, in combination.
