A common treatment for iron deficiency anemia involves which of the following?

Iron deficiency anemia is primarily caused by a lack of sufficient iron in the body, which leads to a decrease in hemoglobin production and a reduced ability of red blood cells to carry oxygen. The treatment for this condition typically focuses on replenishing iron stores in the body.

Iron supplements are specifically designed to increase the levels of iron in the bloodstream, thus addressing the core issue of iron deficiency. These supplements help to restore the body's iron levels, leading to improvements in hemoglobin production and a reduction in the symptoms associated with anemia, such as fatigue and weakness.

In contrast, vitamin B12 and folic acid supplementation are used for different types of anemia, such as pernicious anemia and folate deficiency anemia, respectively. Bone marrow transplant is a more invasive treatment primarily indicated for severe blood disorders or cancers like leukemia, rather than for iron deficiency anemia. Therefore, the most appropriate and effective treatment for iron deficiency anemia is the administration of iron supplements.