Methylmalonic Acid

An elevated MMA level is a key indicator that your body might not be utilizing Vitamin B12 effectively. This essential test measures the amount of methylmalonic acid in your blood or urine, a substance your body produces when digesting protein and which is critical for metabolism. Since Vitamin B12 plays a vital role in this process and in making red blood cells, this screening is most often used to diagnose a deficiency, especially if you are experiencing fatigue, weakness, or digestive problems. Identifying a B12 deficiency early is important as low levels can lead to health issues, including nerve damage. The MMA test helps healthcare providers get a clearer picture of your B12 status, even in cases where B12 levels appear normal.