Well you get Anemia from lack of iron in your body and a lack of iron in your body cause you to have a lack of bone marrow hemoglobin, if you don't have hemoglobin then you can't produce red blood cells. So all of this make Anemia so the answer is folate toxicity.
Deficiency in any of these may cause anemia because of inadequate production of red blood cells. Poor dietary intake is an important cause of low folate and low vitamin B12 levels. ... This may lead to anemia because of vitamin B12 deficiency known as pernicious anemia.
