<unk>  is very rare in countries with folic acid fortification programs. Overall, the worldwide prevalence of anemia due to folic acid deficiency is very low. However, data on the prevalence of deficiency amongst specific high risk groups is lacking.
Folate deficiency
Vitamin E deficiency
Properdin deficiency
Zinc deficiency
Hereditary folate malabsorption
Iron deficiency
Familial isolated vitamin E deficiency
Cerebral folate deficiency