The most common form of hereditary sideroblastic anemia is due to:

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The most common form of hereditary sideroblastic anemia is X-linked and due to mutations in the ALAS2 gene, leading to abnormal ALAS enzyme activity and impaired heme synthesis. Plumbism (lead poisoning) can cause sideroblastic anemia but is not the most common cause. Autosomal recessive inheritance can also result in sideroblastic anemia, but it is less common than X-linked inheritance. Decreased folate levels can cause megaloblastic anemia but not sideroblastic anemia.

The Most Common Form of Hereditary Sideroblastic Anemia Is Due