Vitamin B12 Test by GetTested
£49.00
Uncover the Missing Link to Energy, Cognition, and Nervous System Health
Vitamin B12 is a crucial nutrient that plays an essential role in maintaining energy levels, supporting cognitive function, and protecting the nervous system. Despite its importance, B12 deficiency is surprisingly common—especially among individuals following plant-based diets, older adults, and those with absorption issues. Because deficiency symptoms often develop gradually, they’re easy to overlook until they begin to significantly affect daily life.
This at-home Vitamin B12 Test by GetTested provides a simple yet highly accurate way to assess your B12 levels, helping you take control of your health and prevent long-term complications.
Why Test for Vitamin B12?
Vitamin B12 is involved in several vital physiological processes, including red blood cell production, DNA synthesis, and the maintenance of the nervous system. A deficiency can lead to a wide range of symptoms, from fatigue and memory problems to anxiety, depression, and even nerve damage.
What sets this test apart is its focus on active Vitamin B12, also known as holotranscobalamin—the form that is readily available to your cells. Standard tests often measure total B12, which includes inactive forms that do not reflect the true bioavailable levels in your body. Holotranscobalamin offers a more sensitive and early indicator of deficiency, making this test especially useful for individuals with subtle or early-stage symptoms.
Who Is at Risk of B12 Deficiency?
Vitamin B12 is found naturally in animal products, meaning anyone on a vegetarian or vegan diet is at higher risk of deficiency unless they are supplementing or consuming B12-fortified foods. Other groups commonly affected include:
Adults over 50, due to reduced stomach acid
Individuals with gastrointestinal disorders such as coeliac or Crohn’s disease
People who have undergone bariatric surgery
Those taking certain medications, such as proton pump inhibitors or metformin
Individuals with chronic alcohol use
Symptoms of a B12 Deficiency
B12 deficiency can cause a broad spectrum of symptoms, affecting both the body and mind. These may include:
Persistent fatigue or weakness
Digestive issues such as nausea, diarrhoea, or loss of appetite
Headaches, brain fog, or poor memory
Depression, anxiety, and mood swings
Nerve-related symptoms such as tingling, numbness, or burning in the hands and feet
Shortness of breath or heart palpitations
Pale skin or vision disturbances in more advanced cases
If left untreated, a prolonged deficiency can lead to pernicious anaemia and irreversible neurological damage.
Understanding B12 Absorption
Unlike many other vitamins, B12 relies on a complex absorption process. It requires intrinsic factor—a protein produced in the stomach—to be properly absorbed in the small intestine. If intrinsic factor is lacking, as is the case with some autoimmune or gastrointestinal conditions, B12 cannot be effectively absorbed, regardless of dietary intake.
This makes testing even more important, as individuals may be consuming adequate B12 but still be functionally deficient due to absorption issues.
How the Test Works
This test is designed to be easy, accurate, and convenient. Here’s how it works:
Order your kit online and receive it at home.
Collect a small blood sample using the provided finger-prick tool.
Return your sample in the prepaid envelope to our accredited lab.
Receive your digital results, with a detailed analysis of your active B12 levels and what they mean for your health.
No fasting is required, and the process can be completed in the comfort of your home.
Why Early Detection Matters
Because Vitamin B12 is essential for nerve protection and red blood cell formation, early detection of deficiency can prevent long-term damage. Identifying low levels early gives you the opportunity to correct imbalances through supplementation, dietary changes, or medical support before more serious health issues develop.
Testing is particularly important if you're experiencing unexplained fatigue, cognitive changes, or neurological symptoms—or if you follow a diet or have a condition that puts you at risk.
Support Your Body Where It Matters Most
Your energy, clarity of thought, and neurological health all depend on optimal levels of B12. With the Vitamin B12 Test by GetTested, you can take a proactive step toward understanding and supporting your body’s needs. If you're unsure about your current B12 status, this test provides the clarity needed to make informed, health-promoting decisions.
For those seeking a broader view of their nutritional profile, consider combining this test with our Comprehensive Nutrition Test for deeper insights into your mineral and vitamin status.
