Legal action will be taken against the distributors of a soya milk product that supposedly had seven times the safe dose of iodine.

Al least 25 people claimed that due to high level of iodine in milk, they developed symptoms related to thyroid dysfunction.

The Supreme Court on Thursday filed a case against Spiral Foods Ptd. Ltd., which violated the Trade Practices Act and sold Bonsoy with increased levels of iodine.

The Company has been slapped charges of negligence and the applicants are demanding to reimburse the medical expenses and loss of wages.

One of the lead applicants, Erin Downie of the Dandenong Ranges, said that she started drinking Bonsoy when she was nursing her daughter Mirakye, who is now two years old.

Within weeks of giving birth to her daughter, she had to be hospitalised. Her heart beat was high, she was in and out of consciousness, and she was confined to bed. She also became weak and restless. Her thyroid level was 10 times above the normal level.

While recalling the incident, she said that she was unable to walk and she thought that she was suffering from cancer.

Bonsoy has been withdrawn from the market across the nation after the threat of thyroid problems because of high levels of iodine in the product.