The man, whose name was not reported, allegedly served five people in their 20s and 30s one of his own body parts onstage at an event he held in Tokyo's Suginami district on May 18, The Mainichi Shimbun reported Saturday.
What body part the man served was not reported.
Officials from the district's Health and Welfare Department said they were alerted to the event by concerned Suginami residents who had seen an online advertisement for it.
A spokesperson for the management company of facility the event took place at said his firm rented the space because the performer told the firm the body part was his own and was removed at a medical facility and that there was no legal problem with it.
The incident is being investigated by officials over a suspected violation of the Food Sanitation Law.
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