Myths vs facts: Eisen-Ferritin Selbsttest and Abnehmen

The myth that an iron-ferritin self-test directly aids weight loss is not supported by science. Ferritin is a storage protein for iron and a biomarker for iron status – not for fat burning or metabolic rate. Low ferritin may indicate iron deficiency, which can cause fatigue and reduced physical performance, indirectly affecting activity levels. However, this does not mean that taking iron or optimizing ferritin alone leads to weight loss. In fact, excess iron (hemochromatosis) can be harmful and cause organ damage. Advertising such self-tests as 'weight loss helpers' is mostly marketing without solid evidence. For weight loss, focus on caloric balance, balanced nutrition, and exercise – not on single blood markers. A ferritin test is useful when iron deficiency or overload is suspected, but not as a diet tool. The evidence for a causal link between ferritin levels and weight loss is weak (mechanistic, no randomized trials). Safety note: iron supplements should only be taken after medical consultation, as overdose is toxic.