| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Optimal Diet: The Official CHIP Cookbook | 978-0-8127-0489-1 (0-8127-0489-4) | 2009 | Hans Diehl M.D. |
| The Optimal Diet: The Official Chip Cookbook | 978-0-8127-0437-2 (0-8127-0437-1) | 2007 | Hans Diehl |