If soy works for you then you don't need to worry but for some women it causes
trouble because it mimics estrogen and can mess up their hormones. Estrogen,
especially unopposed estrogen (meaning without balancing it with progesterone)
can encourage the growth of reproductive cancers such as endometrial cancer -
currently the number one cancer of women.

Also in my case I just hate the taste of soy flour and even before I had the
cancer problem I tried to avoid anything that had soy flour in it. Oddly enough
I didn't mind the taste of tofu and ate lots of Chinese food with it in it but
tofu seems much milder than soy flour.

Debra