Diagnosing iron toxicity involves a combination of clinical assessment, laboratory tests, and imaging studies. Blood tests measuring serum ferritin, transferrin saturation, and total iron-binding capacity are crucial in assessing iron status. Genetic testing may be performed to identify mutations associated with hereditary hemochromatosis. Liver biopsy and MRI can be utilized to evaluate the extent of iron deposition in tissues. Early diagnosis is vital to prevent irreversible organ damage.