Composition for improving mental health failure

摘要

The problem to be solved by the present invention is effective in improving mental health deficiency, a highly safe mental health deficiency ameliorating agent or a composition for improving mental deficiency that can be taken continuously and on a daily basis, and for improving mental deficiency It is an object of the present invention to provide a food or drink composition, wherein the subject is a mental health deficiency ameliorating agent or a composition for ameliorating mental health deficiency, comprising a bacterium belonging to Bifidobacterium longum subspecies infantis as an active ingredient. The problem is solved by a food and drink composition for improving health failure.