# Methylmalonic Acid, Serum or Plasma

> This test measures the amount of methylmalonic acid (MMA) in your blood, a substance that builds up if your body lacks Vitamin B12. It helps show whether you have a Vitamin B12 deficiency, which can cause fatigue or nerve problems, even if other vitamin tests appear normal.

- Labcorp code: 706961
- Category: [Nutrients](https://picardo.health/labs/tests/nutrients.md)
- Sample: blood
- Labcorp turnaround: 3–6 days
- Collection: free at a Labcorp location, or $75.00 at home.
- Without a doctor: yes. People order it themselves, with no doctor's visit or referral.
- Price: shown on the review page its order link opens. Opening it orders nothing.
- Order link: https://app.picardo.health/labs/order?tests=706961&ref=assistant

## About ordering

People order for themselves, with no doctor's visit or referral, and results arrive in their Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.