Vitamin B12 Test
Measure your Vitamin B12 levels from home with the GetTested At-Home Vitamin B12 Test. Simple finger-prick collection, lab-accurate results, and digital delivery.
Product details: USD 109 — InStock — SKU GT_001 — GetTested
About this test – Vitamin B12 Test
What This Test Measures
The GetTested At-Home Vitamin B12 Test measures the level of total Vitamin B12 in a dried blood spot sample.
Vitamin B12 (cobalamin) is an essential water-soluble vitamin involved in nerve function, red blood cell production, and DNA synthesis.
The Importance of Vitamin B12
Maintaining adequate Vitamin B12 levels supports several important physiological functions:
Nervous System Health: Vitamin B12 contributes to the formation of myelin, the protective layer around nerves, which supports normal nerve signal transmission.
Energy Production: It plays a role in metabolic pathways that help convert nutrients into energy.
Red Blood Cell Formation: Vitamin B12 is necessary for the production of healthy red blood cells that carry oxygen throughout the body.
DNA Synthesis: It is involved in cell division and the synthesis of genetic material.
Total B12 vs. Active B12 (Holotranscobalamin)
This test measures total Vitamin B12, which represents all circulating forms of B12 in the bloodstream.
Total B12 is commonly used as a screening marker for assessing Vitamin B12 status. Another marker, active B12 (holotranscobalamin), reflects the portion of Vitamin B12 that is biologically available for cellular uptake.
For most screening purposes, measuring total Vitamin B12 provides useful initial information. If further investigation into Vitamin B12 status is needed, additional testing may be considered in consultation with a healthcare professional.
Who Should Consider This Test?
Monitoring Vitamin B12 levels may be relevant for:
Vegans and vegetarians, as plant-based diets often contain limited natural sources of Vitamin B12.
Individuals over 50, since Vitamin B12 absorption may decrease with age.
People with gastrointestinal conditions such as Crohn’s disease or celiac disease that may affect nutrient absorption.
Individuals taking certain medications, including proton pump inhibitors (PPIs) or metformin, which may influence B12 absorption.
Individuals experiencing symptoms such as fatigue, weakness, numbness or tingling, memory issues, or mood changes.
Health-conscious individuals interested in monitoring their nutritional status.
How It Works
Order Your Test
Purchase your At-Home Vitamin B12 Test online.Collect Your Sample
Use the included lancet to collect a small dried blood spot (DBS) sample from a finger prick by following the instructions provided in the kit.Mail to Lab
Send your sample to our CLIA-certified laboratory using the prepaid return packaging.Receive Digital Results
Within 2–5 business days after the laboratory receives your sample, your results will be available through your secure online portal.
Accuracy and Reliability
The GetTested At-Home Vitamin B12 Test uses dried blood spot (DBS) technology, which allows samples to be collected conveniently at home and analyzed in accredited laboratories.
The laboratories follow strict quality control standards to ensure reliable analytical results comparable to traditional laboratory testing methods.
Data Privacy and Security
Your personal health information is handled using secure systems and encrypted data transfer to protect your privacy and ensure confidentiality.
How to prepare – Vitamin B12 Test
Fasting is not required, but we recommend collecting your dried blood spot sample in the morning. Avoid vitamin B12-containing supplements for 2–3 days before collection, unless prescribed by your healthcare provider. Do not remove the lancet safety tab until immediately before use.
Frequently asked questions – Vitamin B12 Test
How does the GetTested At-Home Vitamin B12 Test work and what does it measure?
The GetTested At-Home Vitamin B12 Test utilizes a simple and convenient dried blood spot (DBS) sample collection method from the comfort of your home. This advanced diagnostic tool accurately quantifies your vitamin B12 levels, providing crucial insights into potential deficiencies or excesses. This comprehensive measurement allows for proactive health management and informed nutritional adjustments to support your overall well-being.
What is the sample collection process for the Vitamin B12 Test, and is it accurate compared to traditional venipuncture?
The sample collection involves a quick and minimally invasive finger-prick to obtain a dried blood spot (DBS) sample, which you then send to our CLIA-certified laboratory. While DBS offers unparalleled convenience, extensive research confirms its high correlation and reliability compared to traditional venipuncture for vitamin B12 measurement. Our rigorous laboratory procedures ensure accurate and dependable results for your health assessment.
Who should consider taking a Vitamin B12 Test, and what are common symptoms of deficiency?
Individuals experiencing fatigue, cognitive issues, neurological symptoms, or those on restrictive diets (like veganism) should consider testing their vitamin B12 levels. This test is also vital for addressing specific concerns like pernicious anemia or malabsorption issues, which can impede vitamin B12 absorption. Understanding your B12 status is crucial for maintaining optimal energy, nerve function, and red blood cell production, especially if you fall into these at-risk categories.
How quickly will I receive my Vitamin B12 test results, and what kind of support is offered for interpreting them?
Upon receipt of your sample at our CLIA-certified lab, your comprehensive vitamin B12 results are typically available digitally within 2-5 business days. We provide user-friendly result interpretation, often including a medical review for all results, and pathways to telemedicine consultations if further guidance is needed. Our commitment extends beyond testing, offering a comprehensive support system to help you understand and act upon your health data.
What specifically is included in the price of the GetTested At-Home Vitamin B12 Test?
The price includes the complete at-home collection kit, comprehensive lab analysis by our CLIA-certified laboratory, digital delivery of your results, and access to our dedicated customer support for any questions.
What is the shelf life and proper storage for the at-home Vitamin B12 test kit before use?
The GetTested At-Home Vitamin B12 test kit typically has a shelf life of approximately 12-18 months from the manufacturing date. For optimal integrity, store the kit in a cool, dry place away from direct sunlight and extreme temperatures. It is crucial to check the expiration date printed on the kit and use it before this date to ensure the accuracy and reliability of your results.
Customer reviews – Vitamin B12 Test
4.5/5 (2)
- 4/5 — As someone who's been taking B12 supplements for a while, I wanted to regularly monitor my levels without constant doctor visits. The GetTested kit offered a good solution. The sample collection was straightforward, similar to other at-home tests I've done. I appreciated the clear guidance on avoiding supplements before the test, as that can definitely skew results. The turnaround time for the results was as advertised. The report itself was clear and presented my B12 level in context, which is exactly what I needed. It’s a solid, reliable option if you're looking to keep an eye on your B12 fr
- 5/5 — I've been feeling sluggish lately and suspected my B12 levels might be low, especially since I'm mostly vegetarian. This at-home kit was super easy to use, even for someone who's a bit squeamish about needles. The instructions were clear, and the finger-prick was quick and relatively painless. I sent my sample in, and the digital results were back within 4 business days, which was faster than I expected. The report was easy to understand, showing my levels and explaining what they meant. It confirmed my suspicion, and now I can talk to my doctor about supplementation. Really convenient way to