An "insane asylum"-themed doughnut shop has enraged mental health campaigners who say the "biploar disorder" snacks are offensive.

Jordan Zweigoron' Psycho Donuts shop has drawn criticism over the names of his snacks, including the massive head trauma doughnut.

"When the complaints started, the complaints were everything all at once. We have a doughnut called the Massive Head Trauma, the doughnut resembles a man who had ... better days," Zweigoron said.