Mushroom death: New twist after Rachael Dixon's death at new age health retreat

An autopsy has failed to reveal the cause of death for a personal trainer who died at a retreat after consuming a drink her family believes contained mushrooms.

Rachael Dixon, 53, went into cardiac arrest and died about midnight last Sunday after consuming a drink at Soul Barn in Clunes, near Ballarat in regional Victoria.

'An autopsy has since been conducted and at this stage the cause of death remains unknown,' police said in a statement on Friday.

Rachael Dixon, 53, went into cardiac arrest and died about midnight last Sunday after consuming a drink at Soul Barn in Clunes, near Ballarat in regional Victoria

Rachael Dixon, 53, went into cardiac arrest and died about midnight last Sunday after consuming a drink at Soul Barn in Clunes, near Ballarat in regional Victoria 

Rachael Dixon died while on a retreat at Soul Barn in Clunes (pictured)

Rachael Dixon died while on a retreat at Soul Barn in Clunes (pictured) 

Moorabool Crime Investigation Unit detectives continue to investigate the circumstances of Ms Dixon's death.

Police continue to prepare a report for the coroner.

Two other people were taken to hospital but were later discharged.

Anyone with information about the incident is urged to contact Crime Stoppers.

While Ms Dixon's son and ex-husband believe the drink contained mushrooms, police have not confirmed that.

Ms Dixon's son Matthew posted a heartbreaking tribute to his mother on social media on Sunday, writing that he wished he could give her 'one last hug'.

'To the most loving, most caring person I've ever known, can't thank you enough for everything you ever did for me and all the support you gave me,' he said.

'Words can't begin to describe how much I will miss you, wish I could give you one last hug.'

Soul Barn owner and founder Michelle Mullins

Soul Barn owner and founder Michelle Mullins