Vitamin B12 Test
Do you want to monitor your vitamin B12 levels? Choose this test to measure the level of vitamin B12, an essential vitamin that is necessary for making red blood cells, maintaining a healthy nervous system, and creating DNA (deoxyribonucleic acid), the genetic material present in our cells.
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Our Vitamin B12 Test measures the level of vitamin B12 (also known as cobalamin) in your blood.
Must be 18+ years of age to purchase
Orders not permitted in: AK, HI, AZ
Blood (venipuncture - a needle is used to draw blood from a vein)
The Vitamin B12 Test measures the level of vitamin B12 in your blood. Vitamin B12 is an essential nutrient and is necessary for producing and maintaining nerve and red blood cells, supporting the nervous system, and helping to create DNA, the basis of all cells. Vitamin B12 must be supplied by the diet or through supplementation because the body is not able to produce it. Vitamin B12 deficiency (low levels of vitamin B12) may be due to limited dietary intake, poor absorption, advanced age, certain medical conditions, or some medications. Low levels of vitamin B12 can lead to anemia, nervous system conditions and a variety of health issues. This test can help determine whether you have a vitamin B12 deficiency.
The benefits of testing
You can get the information you need to support a healthy life - for yourself.
Take control of your health
Conveniently shop and pay online for lab tests without a doctor's visit. An independent physician will review your request and if appropriate, confirm your order and offer oversight.
Schedule and manage your appointments
Conveniently schedule your appointment online at one of our Quest Diagnostics locations. Certain tests may also offer self-testing home delivery.
Get your results online
View your results through your secure account online. And it's easy to share the result with your doctor.
Vitamin B12 deficiency anemia is a condition in which your body does not have enough healthy red blood cells, due to insufficient amounts of vitamin B12. This vitamin is needed to make red blood cells (RBCs), which carry oxygen to all parts of your body. Your body cannot function normally without an adequate supply of oxygen-rich RBCs.
Vegetarians and vegans who want to increase their vitamin B12 intake may consider fortified foods such as nutritional yeast, cereal grains, and plant-based milk, or taking a B12 supplement to replenish the body's stores of this essential vitamin.