Hi razzle,
9 Signs and Symptoms of Copper Deficiency

Copper deficiency is apparently pretty rare, but I asked aeria about their copper testing because of the list of symptoms they described.

Low copper has been associated with iron deficiency anaemia plus copper deficiency can be associated with neuropathy.

Also as far as I know, too much zinc can cause copper deficiency as well and in turn iron deficiency anaemia. A loop.

If you have anaemia caused by an acquired copper deficiency then you can change your dietary intake of copper rich foods.