Information about Robert Barefoot isn't very easy to find.. I guess he likes to remain low-key. But he has collaborated with Dr. Reisch on the best health book ever written. If you are looking to buy a book to improve your health, well-being, and to extend your life, this is the book! His facts are backed up by superior scientific research, and the book makes all the sense in the world. I have tried everything known to man.. even Gary Null's programs. The lifestyle outlined in "The Calcium Factor" has brought my health from average to great in only a few weeks. I can't say enough great things about this book.