A 450-pound inmate who was deemed too fat to be put to death has died of natural causes.

Ronald Post died Thursday morning at an Ohio prison hospital where he’d been treated on and off since 2011, a state prisons spokeswoman said. He was a week shy of his 54th birthday.

His obesity became an issue when Post argued in federal court that executing him would amount to cruel and unusual punishment because it would take a long time for a prison official to find a muscle for the lethal injection to be administered.

His death comes seven months after he was granted clemency by the governor, when his case drew national attention because of his  weight.

Spokeswoman Ricky Seyfang said the Ohio Department of Rehabilitation and Correction classified the death as ‘expected.’

She said privacy laws prevented her from divulging whether Post’s weight was a factor in his death.

Post was sentenced to death for killing Elyria motel clerk Helen Vantz on Decemeber 15, 1983.

Ronald Post: Obese inmate ‘too fat for execution’ dies in prison hospital aged 53 | Mail Online