What are all the causes of moderate macrocytic anemia in elederly other than vitamin b12 and folic acid defficiency. can severe depression cause that?

Depression>poor eatg: Anemia should not be accepted as an inevitable consequence of aging. A cause is found in approximately 80 percent of elderly patients. The most common causes of anemia in the elderly are chronic disease and iron deficiency. Vitamin B12 deficiency, folate (folic acid) deficiency, gastrointestinal bleeding and myelodysplastic syndrome are among other causes of anemia in the elderly. Serum ferritin is the most us.