How green are my apples? Is soya good for me?  When should I eat lamb and will it break the bank? These are just some of the questions answered by Joanna Blythman, Britains’s leading investigative food journalist, in her new book ‘What to Eat’.  The book is a very useful guide to unravelling everyday food dilemmas. Blythman takes several criteria; pesticides, health, environmental and animal welfare concerns, workers’ conditions, processing, additives and cost, and scrutinises everyday foods to examine how they measure up. Essential reading for everyone that cares about food. Published, March 5^th Hardback, £16.99.