PROBLEM TO BE SOLVED : To provide a composition having antiallergic action to effectively utilize Punica Granatum seeds, which have been discarded, and add value to them.SOLUTION : A composition that inhibits antibody production, contains Punica Granatum seed extract. In a preferred embodiment of the composition, the Punica Granatum seed extract contains punicic acid or ellagic acid. In a preferred embodiment of the composition, the Punica Granatum seed extract is obtained by grinding Punica Granatum seeds to obtain a ground product, immersing it in at least one solvent selected from the group consisting of ethanol, methanol, water, and hexane, and fractionating a supernatant of it.SELECTED DRAWING : Figure 3