The phrase “a vitamin containing ferritin” is not medically correct, because ferritin is not a vitamin; it is an iron-storage protein. So rather than saying vitamins contain ferritin, it is more accurate to say that some vitamins may support iron absorption or utilization. Vitamin C, for example, can improve the absorption of plant-based iron. Folate and vitamin B12 do not produce ferritin directly, but they are important in blood formation and related hematologic processes. As a result, a person with low ferritin may sometimes also need evaluation of other nutrients, but the central issue is usually iron balance rather than ferritin as a vitamin-like substance. The better phrasing is “vitamins that support ferritin recovery.” Any treatment plan should be based on laboratory data and clinical context.