Vitamin B12

Available at selected stores.*



At-home blood sample collection device for measuring your level of vitamin B12. Results are provided within 24 hours of the sample reaching the laboratory.


This test checks whether you are getting enough vitamin B12, which is essential for many body functions, including the production of red blood cells, DNA synthesis and nerve function. However, since the body cannot produce vitamin B12 on its own, it must be obtained from animal-based foods or supplements. Dairy products, eggs, fish, meat and chicken are rich sources of vitamin B12. As a result, vegans and vegetarians often require vitamin B12 supplements.


If you have a vitamin B12 deficiency, you could become anaemic. This can result in symptoms including:

  • Weakness, tiredness, or lightheadedness
  • Heart palpitations and shortness of breath
  • Pale skin
  • A smooth tongue
  • Constipation, diarrhoea, loss of appetite, or flatulence
  • Nerve problems like numbness or tingling, muscle weakness, and problems walking
  • Vision loss
  • Mental problems like depression, memory loss, or behavioural changes

As you age, your body’s ability to absorb vitamin B12 decreases and heavy drinking can exacerbate this problem. Risk factors that may lead to a vitamin B12 deficiency:

  • Atrophic gastritis, a condition in which your stomach lining is inflamed
  • Pernicious anaemia, a type of anaemia caused by vitamin B12 deficiency
  • Crohn’s disease or celiac disease, causing inflammation of your intestine
  • Immune system disorders eg. Graves’ disease or lupus
  • Taking medications that interfere with the absorption of vitamin B12, including some heartburn medicines such as proton pump inhibitors, H2 blockers and certain diabetes medicines


This sample kit contains a finger-prick blood collection device, along with clear instructions. Samples collected at home are couriered to and tested at the BioSmart accredited pathology laboratory.

Blood is tested to determine vitamin B12 levels.

Your vitamin B12 health report will come in an easy-to-understand format, what the result means and your next steps.

PLEASE NOTE: This product is not intended to compensate for diagnosis, treatment, cure, or mitigation of medical conditions. If you or a family member is experiencing any health-related problems, you should obtain medical advice from a certified health professional as this device may be harmful to your health. You are therefore advised to use this product with caution.


For the Collection of Serum (Portion of Blood) for Testing

Disclaimer: Blood Sample Collection Method

Finger-prick blood sampling is a less invasive alternative to venepuncture and is widely accepted for collecting capillary blood for certain tests. However, please note that results obtained from finger-prick samples may differ slightly from those obtained through traditional venepuncture due to factors such as sample size, collection technique and individual variability. While we take every precaution to ensure accuracy, it is important to consider the specific circumstances of the sample collection when interpreting results, especially for tests where small variations can be significant. If you have any questions or concerns regarding the sample collection method or its potential impact on your results, please consult your healthcare provider or the BioSmart laboratory.

Note: If you do not feel confident taking your own blood sample, we can help:

Call us on 021 180 4707

WhatsApp us on 082 637 7631

Email us at

Or chat via the website

Alternatively, you can have your blood sample taken at selectedstores.

Step 1:

Use this coupon code at checkout to purchase your test online and save on shipping costs: clicks23

Step 2:

Book a consultation at Clicks Cape Gate to have your sample collected.

Step 3:

Bring your receipt to Clicks Cape Gate on the day of the sample collection.

Step 4:

Pay Clicks Cape Gate directly for collecting a blood sample: R80.