Dr. Martin's reply to Anne's question is the same as Ginger's recollection of my post on flaxseed and phyto-estrogens: flaxseed oil is preferable to flaxseed in e+ cancer. The reason for this is that (unless the manufacturer states otherwise), flaxseed oil is devoid of lignans. Lignans are responsible for the phyo-estrogenic effects of the flaxseed.
I leave you with my two favourite flax-links,
a collection of studies:
http://www.thensome.com/flaxseedlinks.htm
the benefits on heart, bones, cancer:
http://www.gaiaresearch.co.za/flaxseedoil.html
Regards,
Al