Essential Vitamin Test - Check Vitamin D, B9 and B12 Levels - Verisana Lab

Essential Vitamin Test

119.00£ Incl. VAT/Sales Tax & FREE Shipping - Original Price 119.00£


Our Essential Vitamin Test assesses your vitamin D, B9, and B12 levels. These vitamins play essential roles in functions like nerve health and cell division, leading to widespread deficiency symptoms.

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  • Details
  • Test measures
  • Symptoms
  • Sample collection guide
  • Reviews
Who should take the test?

The Essential Vitamin Test is recommended for individuals concerned about their vitamin status or those experiencing symptoms associated with vitamin deficiencies. Since vitamins D, B9 and B12 are crucial for numerous bodily processes, including nerve function and cell division, deficiency symptoms can impact various areas of health.

Our Essential Vitamin Test assesses the levels of Vitamin D, B9 (Folate), and B12 (Cobalamin), making it easy to monitor and check your vitamin levels to ensure overall 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 back to us. We analyze your sample and send your results via secure email with a password protected PDF file.

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, you can find more information on our website, particularly in the various test categories under “health conditions” and FAQs. If you still have questions, feel free to reach out to us via email at

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.

Test measures
For the Essential Vitamin Test we analyze:
  • Vitamin B12
  • Vitamin B9 (Folate)
  • Vitamin D
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.

Vitamin B9 (Folate)

Vitamin B9, also known as folate, plays a crucial role in various metabolic processes such as protein and DNA synthesis, making it essential for cell division.

Rich sources of folate include spinach, lettuce, asparagus, cereals (especially wheat germ), and liver, as other foods generally contain low levels of folate. It’s important to note that folate is sensitive to heat and can be diminished through cooking and frying.

Folate deficiency is not uncommon, with pregnant women, breastfeeding women, and smokers being more susceptible. A lack of folate can result in a shortage of red and white blood cells, leading to anemia. In pregnant women, folate deficiency increases the risk of neural tube defects in the developing fetus, potentially causing congenital defects and malformations.

Additional symptoms of folate deficiency may include muscle weakness, reduced sense of taste, depression, numbness and tingling in the extremities, diarrhea, but overdosing on vitamin B9 is highly unlikely to pose health risks.

Vitamin D

Vitamin D, primarily vitamin D3, is crucial for bone health, aiding calcium absorption and protein synthesis. It can be produced by the body or obtained through food, though few foods provide ample amounts.

People spending limited time outdoors, especially the elderly or those with chronic illnesses, face a higher risk of vitamin D deficiency. Symptoms vary from fatigue to bone pain and infections, with severe deficiency leading to long-term problems like bone issues.

A deficiency is diagnosed when prolonged absence of vitamin D combines with indicative symptoms, but seasonal variations can affect results, so retesting is advisable.

Excessive vitamin D intake, often due to supplements or fortified foods, can result in harmful hypercalcemia, causing symptoms like nausea and kidney damage. Therefore, supplements should be taken cautiously and only when a genuine deficiency is confirmed.

Symptoms the Essential Vitamin Test is suitable for:
  • Tiredness
  • Lack of concentration
  • Depressive moods
  • Poor memory
  • Allergies
  • Muscle weakness
  • Anemia
  • Hair loss
  • Reduced sense of taste
  • Headaches
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:

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.

How can I tell if I have a deficiency of Vitamin B9 (Folate)?

A Vitamin B9 (Folate) deficiency may show signs such as anemia, neurological symptoms like numbness, digestive issues, mood changes, reduced immunity, altered taste perception, mouth sores, pregnancy complications, fatigue, and muscle weakness.

What constitutes a deficiency in Vitamin D?

A deficiency in vitamin D is defined as its prolonged absence in the body, coinciding with the presence of symptoms indicative of a vitamin D deficiency, such as rickets. Because vitamin D levels can fluctuate significantly with the seasons, it is advisable to conduct repeat measurements over time to gain a comprehensive understanding of the values and ascertain the presence of a persistent, long-term deficiency.

Who is more prone to developing a Vitamin deficiency?

People more prone to Vitamin D, B12, and B9 (Folate) deficiencies include those with limited sun exposure, older adults, obesity, insufficient dietary intake, specific medical conditions affecting nutrient absorption, certain medications, breastfed infants, and those with restricted diets.

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

Ensure optimal conditions for the blood draw: Hold your hand under warm water for an extended period and gently rotate your arm to enhance blood circulation. When pricking the finger, aim for the side rather than the direct top of the fingertip. Typically, the middle or ring finger of the non-dominant hand is most suitable. While piercing, place your finger on a stable surface to prevent reflexive withdrawal. Applying a gentle squeeze and massaging towards the fingertip can facilitate blood flow.

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