What Could Be Causing Your Anemia? 10 Possible Reasons

5. Vitamin Deficiency

Pernicious anemia develops when the body cannot absorb enough vitamin B12, and it is an autoimmune condition. In some cases, vitamin deficiency is the result of a diet that does not include enough folate and B vitamins. This condition can also develop secondary to a digestive condition such as celiac or Crohn's disease because the body can't properly absorb the B12 and other nutrients from the foods you eat. In some cases, the body cannot process the vitamin efficiently.