People with autism are often intolerant of gluten (a protein in four types of cereal) and casein (a protein found in animal milk). There are many testaments to the benefits for such people of a diet that excludes gluten, casein, monosodium glutamate and aspartame, and these persuaded Marilyn Le Breton to put her autistic son Jack on the diet, which he has significantly benefited from. In the updated and expanded edition of this highly successful book, Marilyn explains what the diet is all about and how it works, what foods can form part of the diet and what should be excluded. She addresses frequently asked questions and misconceptions, such as 'Is the diet too difficult and time-consuming? How strictly do I need to adhere to it? Is the diet expensive to implement?' and gives practical advice on basic equipment and ingredients, what to expect when your child starts the diet, how to adapt family meals and how to minimise cross-contamination in the kitchen.This book includes a wide selection of recipes, an extensive and up-to-date list of addresses and websites of suppliers of foodstuffs in the UK, and suggestions for finding out more information. Marilyn's own experience and sensible approach ensure that this book will be invaluable for any parent of a child with autism, or any adult considering embarking on the diet.