Here's a simplistic explanation of the "No White Foods" diet. I haven't had time to dig out excerpts from Northrup's book, she explains the white food issue from a menopausal perspective. I'll continue to research, but this is a basic place to start:

http://ezinearticles.com/?The-No-White-Foods-Diet&id=160033
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When you don't like a thing, change it.
If you can't change it, change the way you think about it.

(Maya Angelou)