Iron deficiency and cancer growth.

Does anyone have any information about taking iron supplements increases cancer tumors. I am on Navelbine/Hercerptin and my onc put me on Procrit for low red blood count. However, when they tested my blood, they found out I am very anemic. My iron is at 43. I believe 61 is low end of normal. Anyway, my onc. put me on mega doses of Iron. I have to take 3 325mg. tablets daily. I thought I read from someone on a post here that cancer loves iron. Does anyone have any info on that. I would love a link or some info as to where to go to get info. I see onc in 2 weeks and would like info. to talk to her about it. I'm very scared that my cancer is growing because now I have to take iron.