Last week scientists at a Nanosafety Forum hosted by the University of Sydney raised concerns about the continued use of nanoparticles of titanium dioxide (TiO2) in food and called for the better regulation of nanomaterials. A number of recent studies have raised serious concerns about the potential toxicity of nano TiO2 in food. However, our food regulator Food Standards Australia New Zealand (FSANZ) continues to assert that it is safe and to...