TAU PROTEIN PRODUCTION ACCELERATOR, AND THERAPEUTIC OR PREVENTIVE AGENT AND THERAPEUTIC OR PREVENTIVE FOOD COMPOSITION FOR DISEASES CAUSED BY TAU PROTEIN DEFICIENCY
An object of the present invention is to provide: a Tau protein production accelerator containing a natural product as an active ingredient a therapeutic or preventive agent for a disease caused by Tau protein deficiency and a therapeutic or preventive food composition for a disease caused by Tau protein deficiency. Provided are: a Tau protein production accelerator containing a dry powder, ground product and/or extract of an earthworm as an active ingredient a therapeutic or preventive agent for a disease caused by Tau protein deficiency and a therapeutic or preventive food composition for a disease caused by Tau protein deficiency. The disease caused by Tau protein deficiency is preferably Alzheimers disease.