[Overdue] The Dysphagia Challenge is a laymans book describing dysphagia and food preparation techniques for swallowing disorders. It covers dysphagia diets, food textures, recipes, liquids and thickeners for safe swallowing by persons with alzheimers, parkinsons, lou gehrigs, huntingtons, stroke and oral cancer.ed about swallowing disorders and their treatment. Click here or on the books image to order books ...