Methylmalonic acid (MMA) testing assesses vitamin B12 status by measuring MMA levels in blood or urine. Elevated MMA often indicates a vitamin B12 deficiency, even before standard serum B12 tests reveal low... Read more »
Cobalamin, methylmalonic acid (MMA), and homocysteine are interconnected metabolically. Elevated MMA and/or homocysteine levels in the blood can indicate a functional deficiency of cobalamin, even when serum cobalamin levels appear within the... Read more »
Methylmalonic acid (MMA) is a substance produced in the body as a byproduct of metabolism. Elevated levels of this organic acid in blood or urine often signal a deficiency in cobalamin, also... Read more »