Methylmalonic Acid

Three reasons the Methylmalonic Acid (MMA) test is right for you

• This test helps assess your vitamin B12 status more accurately than standard B12 blood tests
• It can detect early or subtle B12 deficiencies before symptoms develop
• Results guide dietary or supplement strategies to prevent neurological and blood-related complications

What is the Methylmalonic Acid (MMA) test?

Methylmalonic acid (MMA) is a substance in your blood that rises when your vitamin B12 levels are low. The MMA test measures the amount of this compound in your serum to assess whether you have a B12 deficiency.

This test is often recommended for:

• People with symptoms of B12 deficiency such as fatigue, numbness, or memory difficulties
• Individuals with borderline B12 levels on routine blood tests
• Those following vegetarian or vegan diets, or with absorption issues
• Patients with certain gastrointestinal disorders or after bariatric surgery

What are the symptoms of B12 deficiency?

Vitamin B12 deficiency can affect the nervous system, red blood cell production, and overall energy levels. Symptoms may include:

• Fatigue, weakness, or low energy
• Numbness, tingling, or a “pins and needles” sensation in hands and feet
• Cognitive changes such as memory loss or difficulty concentrating
• Pale skin, shortness of breath, or dizziness due to anaemia
• Mood changes or irritability

How does the Methylmalonic Acid (MMA) test work?

A blood sample is taken and analysed for levels of methylmalonic acid in the serum. Elevated MMA indicates a functional B12 deficiency, even if standard B12 tests appear normal. This allows your healthcare provider to identify early deficiency and prevent long-term complications.

What can I expect at my appointment?

Your appointment involves a standard blood draw performed by a trained professional. The procedure is quick and minimally invasive.

Results are typically available within 5 days. You will receive a detailed report showing your MMA levels and guidance on whether dietary changes, supplementation, or further evaluation is recommended.

Are there any risks with this test?

This is a routine blood test and is considered very safe. Most people experience only mild discomfort at the needle site.

Occasionally, minor bruising or tenderness may occur. Serious complications are extremely rare. Seek medical advice if you feel unwell after the test.

How do I schedule my appointment?

To book your appointment, click the “Book Your Appointment” button at the top of the page. Select your preferred clinic, date, and time, and we will guide you through the process.