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Vitamin B12 Test (Blood)

Vitamin B-12, also called cobalamin, is a water soluble vitamin that plays a key role in the formation of blood (red blood cells and white blood cells), normal functioning of the brain and nervous system. Vitamin B-12 is one of the eight B vitamins, and it is involved in the metabolism of every cell in the human body.

Test Details

The benefits of knowing your Vitamin B-12 levels are vital since they play a major role in the formation of blood cells and functioning of the brain and nervous system. Vitamin B-12 deficiency may be due to multiple causes such as dietary deficiency, pernicious anemia, post-surgical malabsorption, and atrophic gastritis, a condition that affects 10 – 30% of the elderly population.

Vitamin B-12 deficiency may show up in multiple symptoms, including fatigue, weakness, loss of appetite and constipation. Symptoms such as numbness and tingling of the hands and feet may be experienced in severe deficiencies.

Having an optimal Vitamin B-12 level can help you regain your energy, increase your metabolism, regulate your immune system and support your nervous system.

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Am I required to fast?

No, fasting is not required. There are no dietary or medicinal restrictions to take this test.

Is a doctor's order required?

No. You do not need to provide a doctor’s order to get lab testing done at Any Lab Test Now.

When will I get my test results?

Test results generally take between 24 to 72 business hours after your specimen is collected.

If I have questions about my tests results who should I contact?

We recommend you share your results with your physician.