The present invention provides an instantaneous intestinal regulator, which: contains a Propionibacteriaceae culture, DHNA or an analog thereof as an active ingredient manifests intestine-regulating effects within one day after being taken and manifests more pronounced intestine-regulating effects within two days after being taken. The present invention also provides an instantaneous intestinal regulator, which contains a Propionibacteriaceae culture, DHNA or an analog thereof as an active ingredient and maintains the intestine-regulating effects for two weeks after being taken.