Paul Saladino· MD
small means usually iron deficiency which may actually be hidden copper deficiency in a lot of people and too big is B12 or folate deficiency if you're worried about copper which I think a lot of people should be get more liver in your life either fresh or desiccated but liver is a great source of copper and will help with that there's a lot of anemia that's misdiagnosis iron deficiency anemia that is probably related to a copper deficiency in your body's inability to use iron