Buy the Hay Diet book
A variety of different food combining books
All of the books below provide in depth information about the food combining and the Hay Diet.
Upon hovering over any of the Hay Diet books below you can view the cost. By clicking a book you will be transferred to the Amazon website where you have the option to purchase.
All of these books are highly recommended and make for pleasant reading.
Any of these Hay Diet books will be able to aid you in understanding more about the food combining and how it works.