The last year has seen a number of new scientific studies showing the dangers to animals and the environment of GM Crops, in this latest stunning study from Brazil, Bt toxins are shown to be toxic to the blood of mice.

The study (abstract below) explores the toxicity of Bt proteins in mammals. It shows that the Bt toxins Cry1Aa, Cry1Ab, Cry1Ac or Cry2A have toxic effects in the blood of mice. The methodology is not clearly described but what is clear is that the presumed nontoxicity of Bt toxin to mammals, on which all regulatory approvals of Bt crops are based, is false.