PROBLEM TO BE SOLVED: To solve the problem that, since the fact, that the treatment of gastrointestinal diseases such as IBD and IBS using probiotics is not sufficiently profitable, has been found, improvement is required even for the alternative for traditional treatment by real supplement or chemical substance.SOLUTION: The composition for daily treatment to human with irritable bowel syndrome (IBS) includes: (a) at least 10 g (dry weight) of fermented cereal; and (b) at least 5×10cfu of avirulent microorganisms.【課題】プロバイオティクスを用いたIBD及びIBS等の胃腸疾患の前記治療は十分に有益でないことが判ったので、本格的なサプリメント又は化学物質による伝統的治療の代替にさえするために改善する必要がある。【解決手段】過敏性腸症候群(IBS)のヒトの毎日の治療用組成物であって、a)少なくとも10g(乾燥重量)の発酵穀物及びb)少なくとも5×1010cfuの非病原性微生物を含んでなる前記組成物。【選択図】なし