Low Iron????

I've done my one month and I've just done my 3 month of full blood work and everything keeps coming back fine. Except each time my iron is low. Has anyone else had this problem? What did you do about it? My doctor doesn't want to seem to want to change my iron in take.

My 6 week blood work indicated a slightly lower than normal iron reading. PCP didn't reccommed pills but I ask for info to increase iron in my diet. The highest iron value is in liver and so I eat it weekly. i am 2 weeks from labs now so I will see if it helped. My surgical team saw the same labs and never commented on iron, they were too tickled with my progress in weight loss, all I was told was to keep up the good work. However, I have noticed I am eating more ice, another indication I may be low in iron.