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Vitamin B12 Test - Check Vitamin B12 Levels - Verisana Lab

Vitamin B12 Test

59.00$ FREE Shipping - Original Price 59.00$

SKU: UBS-VS.71 Category:

Vitamin B12 deficiency can encompass a variety of symptoms, including fatigue, anemia, cognitive impairments, numbness or tingling in extremities, mobility challenges, mood fluctuations, vision disturbances, and even heart palpitations.

Our Vitamin B12 Test offers a convenient and reliable means to evaluate your vitamin B12 levels through a simple blood test, providing valuable insights into your health status.

Availability: deliverable immediately
  • Details
  • Test measures
  • Symptoms
  • Sample collection guide
  • Reviews
Who should take the test?

The Vitamin B12 test is highly recommended for individuals who may experience a range of symptoms associated with Vitamin B12 deficiency, including hair loss, muscle weakness, fatigue, poor memory, headaches, depression, a burning sensation in the tongue or tingling in the arms and hands, anemia, and allergies.

Given that up to 6% of the population under the age of 60 and up to 20% over the age of 60 in the United States may not meet the recommended Vitamin B12 intake, our test provides a valuable opportunity for those who suspect deficiency or wish to monitor their B12 levels to better understand their health and well-being.

How does it work?

Once your order has been processed, you will be sent a blood sample collection kit. You collect your sample from the comfort of your own home and send it right back to our CLIA-certified partner laboratory. We analyze your sample and inform you that your results have been uploaded to your confidential account on our secure website.

What guidance will I get along with my results?

Following the completion of the analysis, you will receive a lab report that includes explanations for the analyzed markers and details on potential symptoms linked to imbalances. Additionally, we strongly advise that you discuss the results you receive from us with your healthcare provider or practitioner.

Moreover, additional information can be found on our website, particularly within various test categories, “health conditions,” and the Frequently Asked Questions (FAQs) section. If you have any further inquiries, please feel free to reach out to us by sending an email to

How is my privacy protected?

Samples for our tests are collected in the privacy of your own home. Both we and our partner laboratories (which may be contracted by us to conduct some or all analyses of your test) take customer privacy very seriously.

You will be the sole person with access to this information, and we guarantee that we will not disclose your information to any unauthorized third parties. Additionally, all samples will be disposed of after analysis. Both our Verisana portal for registering kits and receiving results as well as our CLIA-certified partner laboratories are fully HIPAA-compliant.

Test measures
For the Vitamin B12 Test we analyze:
  • Vitamin B12
Vitamin B12

Vitamin B12, scientifically known as Cobalamin, is a water-soluble essential nutrient, meaning our bodies cannot produce it on their own, necessitating a sufficient dietary intake.

This crucial vitamin plays a pivotal role in breaking down individual fatty acids, facilitating blood formation, supporting nerve function, and promoting cell division. Consequently, a deficiency in Vitamin B12 can have far-reaching effects, affecting various bodily systems, including the eyes, nerves, muscles, and even hair.

Symptoms of this deficiency encompass hair loss, muscle weakness, fatigue, memory impairment, headaches, depression, tingling sensations in the limbs, anemia, and allergies.

The daily recommended intake of Vitamin B12 for adults is approximately 4µg, primarily sourced from animal products like meat, fish, dairy, and eggs. Consequently, individuals adhering to vegan or vegetarian diets may be at higher risk of Vitamin B12 deficiency if they do not supplement their intake.

Additional risk factors include autoimmune disorders, pregnancy, impaired gut absorption (e.g., in conditions like celiac disease or Crohn’s disease), and certain medications, such as those for diabetes and acid indigestion.

Importantly, the risk of overdosing on Vitamin B12 is exceedingly low, as the body efficiently eliminates any excess through the kidneys.

Symptoms the Vitamin B12 Test is suitable for:
  • Tiredness
  • Lack of concentration
  • Degeneration of the optic nerve
  • Disturbance of the optic nerve
  • Depressive moods
  • Muscle weakness
  • Anemia
  • Hair loss
  • Headaches
  • Allergies
Sample collection guide

Please read the following instructions in detail before starting with the sample collection.

Please download the instructions here


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Any Questions?

Here are some of the most frequently asked questions regarding this test. Your question is missing? Please contact us at:

I am not getting enough blood from my finger, what can I do?

In order to draw more blood from your finger, begin by warming your hand under running warm water for a few moments and gently rotate your arm to enhance blood circulation. When it's time to prick your finger, aim for the side of the finger rather than the tip. It's often easier to use the middle or ring finger of your non-dominant hand. To prevent any involuntary withdrawal during the piercing, place your finger firmly on a stable surface. Finally, apply a gentle squeeze and massage towards the fingertip to encourage blood flow.

What exactly is Vitamin B12 deficiency?

Vitamin B12 deficiency is a condition where the body lacks an adequate amount of vitamin B12, a vital water-soluble nutrient. It can result from factors like inadequate dietary intake, poor absorption due to medical conditions or medications, and can lead to symptoms such as fatigue, anemia, cognitive problems, nerve damage, mood changes, and more. Severe or prolonged deficiency can lead to serious health issues and should be managed under medical guidance.

Who is more susceptible to Vitamin B12 deficiency?

Certain individuals are at an elevated risk of Vitamin B12 deficiency, including vegans, vegetarians, older adults, those with gastrointestinal disorders, long-term medication users (e.g., PPIs, metformin), weight loss surgery patients, individuals with autoimmune disorders, chronic alcoholics, strict dieters, and pregnant or breastfeeding women. These groups may have reduced dietary intake, absorption issues, or increased nutritional requirements, making them more susceptible to Vitamin B12 deficiency.

Is it possible to have an excess of Vitamin B12?

Vitamin B12 is a water-soluble vitamin, which means that any excess amounts that your body does not need are typically excreted through urine. As a result, it is generally considered difficult to overdose on Vitamin B12 through dietary sources or supplements alone. However, extremely high doses of Vitamin B12 supplements, particularly in the form of injections, can potentially lead to excessive levels in the body. While rare, Vitamin B12 toxicity can result in symptoms such as nerve problems, skin issues, gastrointestinal disturbances, high blood pressure and low potassium levels (hypokalemia).

Can I supplement my Vitamin B12 levels through food?

Yes, you can increase your Vitamin B12 levels through dietary sources like meat, fish, dairy, and eggs. For most people, a balanced diet that includes these foods provides sufficient B12. However, those on strict vegan or vegetarian diets may need to consider supplementation or fortified foods to avoid deficiency. Fortified foods like cereals and plant-based milk alternatives can also be good sources of Vitamin B12.

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