Those here who have cognitive problems or depression should consider taking supplemental iron. That is especially true for women. I suggest iron bisglycinate since it is non constipating and well absorbed. I guess it would be a good idea to take it with vitamin c, B12 and folic acid.


http://www.revolutionhealth.com/drugs-treatments/iron-ferrous-sulphate-ferrous-gluconate



Decreased kidney function can also cause anemia.
Mercury can impair kidney function.

http://www.aakp.org/aakp-library/anemia-kidney-disease/