As an international best-selling author, Dr David Perlmutter needs little introduction. He is a leading expert in integrative neurology and a serial educator on the perils on grains in the modern diet. In today's podcast, recorded at the 4th Annual BioCeuticals Research Symposium in Sydney; Dr Perlmutter shares his expertise on the issues with the modern diet, our heavy reliance on grains and the disturbance these are having on gut, cognitive and behavioural function. Dr Perlmutter's passions also extends to grain agriculture including genetic modification and the use of glyphosate.