The New Zealand woman who died for a suspected mushroom poisoning at a wellness retreat in Victoria, Australia did not consume death cap mushrooms.

An investigation is underway to determine the cause of her death, which includes other types of mushrooms which may have been consumed as part of a drink.

Death cap mushrooms were the suspected cause of three deaths at a lunch party in Victoria last year, where they were reportedly served with a beef wellington pie.

Rachael Dixon, the 53-year-old woman who died at the wellness retreat last week, was raised in Southland, where members of her family still lived.

Police were called at about midnight on Saturday night when Dixon reportedly went into cardiac arrest at Soul Barn in Clunes, a “creative wellbeing centre”, after consuming a drink that may have contained mushrooms.

Two other people were admitted to hospital but they have since been discharged.

Fungi expert Greg Moore told 1News some mushrooms cause a hallucinogenic response, but others produce “really toxic” chemicals.

“They start to effect the organs of your body.”

Authorities last month warned residents about poisonous mushrooms growing in Victoria. Now, they await a toxicology report to determine if indeed they were consumed by Dixon.

But, unlike the three people who were killed last year, investigators have already determined death cap mushrooms did not kill the Kiwi mum.