Ferritin is the body's iron storage protein. A MyBody-X test can detect HFE variants (e.g., rs1799945, H63D) associated with increased iron risk. However, ferritin levels are also influenced by diet, inflammation, and other factors. A genetic test alone cannot diagnose hemochromatosis or iron deficiency. Evidence for dietary impact on ferritin is moderate: iron-rich foods (red meat, legumes) can raise ferritin, vitamin C enhances absorption, while phytates (whole grains, tea) inhibit it. Important: Ferritin is an acute-phase protein – it rises during infections or inflammation regardless of iron status. Never supplement iron without medical workup, as excess can damage organs. The test provides clues, not instructions, without clinical context.
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