No topic in nutrition is more controversial than wheat. While some people suggest that wheat may be the new asbestos, Stephen Yafa finds that it has been wrongly demonised. His revealing book sets the record straight, breaking down the botany of the wheat plant we've hijacked for our own use, the science of nutrition and digestion, the effects of mass production on our health and questions about gluten and fibre - all to point us towards a better, richer diet.