Chromium (Serum/Urine)
Chromium is a trace mineral measured in serum or urine. It is best known for helping the hormone insulin work in the body, which supports normal blood sugar handling.
Chromium is needed only in tiny amounts and is found in foods like whole grains, meats, and some vegetables. Reliable measurement is challenging because samples are easily contaminated by everyday sources, so results are interpreted with care. Testing is uncommon and usually reserved for specific situations.
A high chromium level often reflects supplementation, occupational exposure, or, notably, certain metal-on-metal joint implants that can release chromium. Because sample contamination can also inflate results, a high value is interpreted cautiously and in context. It rarely reflects diet alone.
A low chromium level is difficult to interpret because there is no well-established, reliable marker of chromium status. A single low value on its own may not be meaningful.
There is no widely accepted target for routine chromium testing, and results depend heavily on the testing context. A clinician who ordered this test can help you understand what it means for you.
Sources
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.