Methylmalonate
This test measures the amount of methylmalonic acid (MMA) in your blood or urine. MMA is a substance made in small amounts when you digest protein. MMA is needed for metabolism, which is the process that your body uses to change food into energy.
An MMA test is most often used to diagnose a vitamin B12 deficiency.
Source: MedlinePlus, U.S. National Library of Medicine
Normal range
- Normal
- 0–0.4 umol/L
Ranges from ARUP Laboratories Test Directory, American Board of Internal Medicine (Laboratory Test Reference Ranges).
All 4 source ranges
What moves it
| Recommendation | When | Evidence | Source |
|---|---|---|---|
| Vitamin b12 — address deficiency | Low | National Institutes of Health - Office of Dietary Supplements |
What an abnormal result can be associated with
- A high result
- Methylmalonic acidemia
Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis — only a clinician can interpret your result in context.
Details
- Sample
- Serum or plasma · LOINC
- Listed under
- Amino Acid Metabolism Disorders · B Vitamins
- Code
- LOINC 13964-2 · umol/L
- Also known as
- Methylmalonic acid, Propionic acidemia, MMA