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Methylmalonic Acid details

What Methylmalonic Acid shows

Methylmalonic acid (MMA) is a compound that builds up in your blood when vitamin B12 is deficient, since B12 is needed for an enzyme reaction that normally clears MMA. Because MMA rises even in early or mild B12 deficiency โ€” sometimes before the B12 blood level itself drops clearly out of range, and before anemia or other symptoms appear โ€” it's considered a more sensitive marker of true B12 status at the cellular level than a standard B12 test alone, and it's often checked when B12 deficiency is suspected despite a borderline-normal B12 result.

Tests that include Methylmalonic Acid

Quest Not offered
Quest Not offered
Quest Not offered
Quest Not offered
Labcorp Not offered
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