All of you in treatment know that I do not advocate the use of soy in the diet. Soy can insight a tremendous amount of pain. There is more to the soy story when it comes to IC, but ths article is a great one that gives some insight as to why soy is not what it might be cracked up to be for all people:
http://www.healingdaily.com/detoxification-diet/soy.htm