A clampdown on Australia's fruit juice industry has led to a first wrist-slapping. The country's biggest juice company, Berri, is to change its labelling following investigations by the Australian Competition and Consumer Commission.

The Commission found that the labelling on Berri's Fruitful SuperJuice range - which includes Green Zone, Kickstart and Immune juices - was misleading. The Green Zone juice, for example, claimed to contain "a shot" of grass, implying that it had 30 millilitres of wheat grass, barley grass and spirulina per litre. "The Green Zone product in its original formulation contained only approximately one gram of wheat grass, far short of a shot in the ACCC's view," the Commission's chairman, Graeme Samuel, said.

The Commission also found that supplements used by Berri were powdered concentrates which made it harder to measure their potency or effectiveness. Berri has subsequently agreed to change the wording on its Fruitful SuperJuice products from "no concentrates" to "no fruit concentrates".

Samuel said that it was imperative that marketing claims in the juice industry were substantiated. "Labelling on products with health claims can have a significant influence on a consumer's purchasing decision," he said.

Earlier this week, the ACCC said that it wanted to see an overall improvement in trade practices law compliance at every level of the juice industry.