Vitamin B12 Test

The Vitamin B12 Test measures the concentration of Vitamin B12 (Cyanocobalamin) in the blood. Vitamin B12 is an essential B-complex nutrient required for the formation of healthy red blood cells, DNA synthesis, nerve tissue protection and cell repair. Since the body cannot produce this vitamin on its own, it must be obtained from food sources such as meat, dairy products, eggs, fish and fortified supplements.

Low Vitamin B12 levels can cause megaloblastic anemia, leading to weakness, paleness, shortness of breath, and reduced oxygen supply. It may also trigger neurological damage, resulting in symptoms like tingling in hands and feet, numbness, poor balance, cognitive decline and nerve inflammation. The test also assists in evaluating conditions such as dementia, neuropathy, atrophic gastritis, malabsorption disorders and nutritional deficiencies.

Doctors often recommend Vitamin B12 testing when an individual presents unexplained fatigue, mood changes, nerve pain, memory issues or dietary limitations. The test plays a vital role in long-term nutritional assessment and treatment monitoring, helping identify deficiency early and prevent progressive nerve damage or anemia.

Measures levels of Vitamin B12 in the bloodstream to assess nutritional status, red blood cell production, nerve health and risk of anemia or neurological disorders.