Toxicity of GM foods study retracted

Elsevier, publishers of the journal Food and Chemical Toxicology, announced yesterday that the article ‘Long term toxicity of a Roundup herbicide and a Roundup-tolerant genetically modified maize’ was being retracted.

The editor-in-chief launched an investigation into the study after receiving many letters to the editor questioning the validity of the findings.

The study showed there were more deaths in rats fed GM maize compared to controls, and treated rats died faster, developed more tumours, liver congestion and necrosis and nephropathies over two years.

The investigation found there was legitimate cause for concern over the study findings because of the low numbers of rats included in the study and the use of a strain particularly susceptible to tumours.

Robert Wagner, faculty member at the biology department of Vancouver Island University, said it was worrying that it had taken the journal more than a year to retract the