Vitamin B12

Getting tested for Vitamin B12 can be important for several reasons:

To diagnose a B12 deficiency: Vitamin B12 is an essential nutrient that plays a critical role in red blood cell formation, nerve function, and DNA synthesis. A deficiency in B12 can cause a range of symptoms, including fatigue, weakness, numbness or tingling in the hands and feet, difficulty walking, and memory problems.

To monitor the effectiveness of treatment: If you are being treated for a B12 deficiency, a B12 test can help monitor the effectiveness of your treatment.

To assess the risk of certain conditions: Low levels of B12 in the blood may be associated with an increased risk of certain conditions, including Alzheimer’s disease, dementia, and cardiovascular disease.

To assess the risk of certain medications: Some medications, such as metformin and proton pump inhibitors, can interfere with B12 absorption and increase the risk of B12 deficiency.

To assess the risk of pernicious anemia: Pernicious anemia is a condition in which the body is unable to absorb B12 from food. It is often caused by an autoimmune condition in which the body attacks the cells in the stomach that produce a protein necessary for B12 absorption. A B12 test can help diagnose pernicious anemia.

Overall, a B12 test can provide important information about your B12 levels and overall health. If you have concerns about your B12 levels or have symptoms such as fatigue or numbness or tingling in the hands and feet, it may be a good idea to speak with your healthcare provider about getting a B12 test.