The present disclosure relates to a composition for ameliorating infertility comprising one or more compounds contained in one or both of pericarp and fruit of a plant of the genus Trapa, preferably an extract of the pericarp and fruit or one or compounds isolated from the extract as the active ingredient that is safe and has high activity, in which the one or more compounds preferably has an inhibition activity against one or more reactions involving a formation of advanced glycation end products from proteins and saccharides, an enhancing activity against one or more reactions involving a decomposition of the advanced glycation end products and an activity to reduce allergic symptoms.