Dr William Hay devised the Hay diet in the early twentieth century as a way to help the body digest food more easily (by separating protein meals from carbohydrate meals). This book clearly sets out the diet in accessible terms, as well as providing diagrams to explain its principles.

Jackie Habgood also shows how common health problems such as candida and hypoglycemia can be alleviated by the Hay diet.

No other book presents the basics of this diet so simply or practically.