These two photos of my hair were taken on May 15th, 2006. I read recently that if you are iron deficient, it can cause your hair to be brittle among other things. Women of childbearing age are the ones most likely to be iron deficient. But doctors don’t recommend that you take iron supplements unless your doctor prescribes it because if you take too much iron it can have negative effects too. They say it is better to get your iron from food sources like spinach and sunflower seeds, or enriched cereal.