"'This book is to be warmly welcomed. It is a vivid and very well-written account of a 'hidden chapter' in medicine that ought to be widely known among the public at large, among policy-makers, and among medical professionals. A major reappraisal of how we define, diagnose and treat B12-deficiency is needed, and this book is a trail-blazer for this mission.' A. David Smith, Professor Emeritus of Pharmacology, University of Oxford, UK, and Helga Refsum, Professor of Nutrition, University of Oslo, Norway, and Visiting Professor of Human Nutrition, University of Oxford, UK"
