Iron deficiency anemia in older adults is most often a result of:

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Iron deficiency anemia in older adults is usually caused by chronic blood loss from the gastrointestinal tract. This can be due to things like ulcers, diverticulitis, or colonic polyps. Poor nutritional intake of iron or malabsorption of iron can contribute to iron deficiency anemia, but they are less common causes in older adults. The decreased ability to transport iron because of a decrease in transferrin is not a common cause of iron deficiency anemia in older adults.

Iron Deficiency Anemia in Older Adults Is Most Often a Result