From the internationally renowned expert on celiac disease and director of the Celiac Disease Center at Columbia University, here is the definitive book on gluten, uncovering the truth and explaining the science behind the current gluten-free craze. Thousands of people have adopted a gluten-free lifestyle, believing it’s healthier, that it will help them lose weight or increase their energy. The diet, a regimen once followed only by those diagnosed with coeliac disease (a serious autoimmune disorder), has become a cure-all, ‘prescribed’ not only by gastroenterologists, but also by nutritionists, trainers, psychiatrists, as well as celebrities.