What role does Ferritin play in Darmgesundheit?

Ferritin is the primary blood marker for body iron stores. In the context of gut health, it plays an indirect but important role: iron absorption occurs mainly in the duodenum and upper small intestine. Low ferritin may indicate poor iron absorption due to gut conditions like celiac disease, Crohn's disease, or ulcerative colitis. Chronic blood loss from the gut (e.g., from polyps or tumors) also lowers ferritin. However, ferritin is an acute-phase reactant: during gut inflammation (e.g., active ulcerative colitis), ferritin can be normal or elevated despite true iron deficiency. Therefore, measuring ferritin alone without inflammatory markers (CRP, calprotectin) can be misleading. Elevated ferritin in gut health issues may also point to hemochromatosis or inflammation-driven iron overload. The evidence linking ferritin to gut health is primarily clinical and epidemiological (human-moderate). Individual interpretation always requires clinical context and additional lab values.