An object of the present invention is to provide a useful composition that contains a highly safe lactic acid bacterium or a component derived from this lactic acid bacterium. The present invention relates to a composition comprising at least one lactic acid bacterium selected from the group consisting of Lactobacillus delbrueckii subsp. lactis strain KR-037 (NITE BP-395), Lactobacillus delbrueckii subsp. lactis strain KLAB-4 (NITE BP-394), and variants thereof, or comprising a component derived from the lactic acid bacterium. The composition of the present invention is useful as a preparation that has an excellent antiallergic function and also has at least one other function selected from an anti-autoimmune disease function, a diabetes-improving function, a neutral fat-lowering function, and so forth.
