Please note : these links are for further information only and do not imply a recommendation
Good biography of Johanna Budwig (in German) : From the Budwig Institute in Germany
Wiki on Budwig : much abridged!
The paper refered to in the Wiki text (3). Refers to lack of trials.
The Budwig Cookbook : this is the one I use.
Flax Oil, Nuts and seeds online : the place I get mine from but there are others.