Final answer:
Iron deficiency is the most common cause of anemia, often resulting from insufficient dietary iron, inability to absorb iron, or chronic blood loss. It is especially prevalent among women of childbearing age in the US. Treatment can involve dietary changes or iron supplementation.option b is correct
Step-by-step explanation:
The most common cause of anemia is iron deficiency. Iron deficiency anemia arises when there is not enough iron in the body to produce sufficient heme, the component of hemoglobin that binds oxygen. This condition can be due to inadequate dietary iron, poor absorption, or chronic blood loss, such as from the gastrointestinal tract or, in women, during menstruation. In the United States, it's prevalent in women of childbearing age due to menstrual blood loss.
Iron-deficiency anemia can result in symptoms like weakness, fatigue, and poor concentration. If the anemia is severe, it may require treatment with iron supplementation or even blood transfusions. Preventative measures include ensuring an adequate intake of iron in the diet. Some other types of anemia include those caused by vitamin B12 or folate deficiency, chronic diseases, and bone marrow or stem cell issues.