Deficiencies can occur when you don’t get enough B-12 from your diet or when your body can’t use it properly. Typically, vitamin B-12 deficiencies can be detected through the vitamin B-12 test.

A uric acid test measures the amount of uric acid in the body. Uric acid is a chemical that’s produced when your body breaks down purines. Purines are compounds that enter the bloodstream during the ...

What Is a Uric Acid Urine Test? A uric acid urine test is a test that checks how much uric acid is in your pee. Your body makes uric acid when it breaks down purines, which are chemicals in your body ...

Methylmalonic acid (MMA) is a substance that is created when your body digests protein. The amount of vitamin B12 in your body controls how much MMA your body makes. A high amount of MMA typically ...