How are Ferritin Eisenmangel and Abnehmen related?

The relationship between ferritin (iron storage), iron deficiency, and weight loss is complex and not clearly established. Low ferritin indicates depleted iron stores, which can cause fatigue and reduced exercise capacity – potentially hindering weight loss efforts by lowering energy expenditure. However, ferritin is also an acute-phase reactant: inflammation (common in obesity) can elevate ferritin even when iron is deficient. Some observational studies suggest links between iron status and metabolic rate, but evidence is largely associative, not causal. Weight loss itself may lower ferritin as inflammation decreases. Without confirmed iron deficiency anemia or symptoms, using ferritin alone to guide weight loss is not evidence-based. Caution: excess iron supplementation is harmful. Overall evidence is mixed (human-moderate).