# Methylmalonic Acid, Urine

> This test measures the amount of methylmalonic acid (MMA) in your urine, a substance that builds up when your body lacks Vitamin B12. It helps show whether your tissues have enough of this vitamin to function properly, which is important if you are experiencing fatigue, weakness, or nerve issues. This measurement helps doctors distinguish between a true Vitamin B12 deficiency and other conditions with similar symptoms. However, this test alone cannot determine the specific underlying cause of the deficiency.

- Labcorp code: 716365
- Category: [Nutrients](https://app.picardo.health/labs/tests/nutrients.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=716365&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's 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.