Home ยป Sideroblastic anaemia occurs due to the deficiency of Vitamins MCQs Sideroblastic anaemia occurs due to the deficiency of January 26, 2022 2 Views Q. Sideroblastic anaemia occurs due to the deficiency of A. vitamin-B6 B. vitamin-B3 C. vitamin-B1 D. vitamin-B12 Answer: vitamin-B6