A nurse is teaching a client with a history of ulcerative colitis and a new diagnosis of anemia. Which of the following symptoms from ulcerative colitis is a contributing factor to the development of anemia?

Chronic bloody diarrhea is a significant symptom of ulcerative colitis and leads to iron loss and depletion, contributing to the development of anemia due to the loss of blood and iron. Dietary iron restrictions may affect iron intake, but they are not a direct symptom of ulcerative colitis that contributes to anemia. Intestinal parasites can cause anemia but are not a common complication associated with ulcerative colitis. Intestinal malabsorption syndrome can lead to anemia; however, it is not a primary symptom of ulcerative colitis itself.