Vitamin B12
Updated over a week ago

Who Vitamin B12 is suitable for

Vitamin B12 is suitable for adults aged 18 and over.

Vitamin B12, also known as cobalamin, is a key nutrient for your health. It’s essential for energy production, brain health, and red blood cell formation. It plays a key role in psychological function and maintaining proper nerve function throughout the body. Vitamin B12 is produced by bacteria, not by animals or plants. Therefore humans must acquire it either directly or indirectly from bacterial sources which include animal-derived foods or supplements.

Vitamin B12 contains 1000μg of methylcobalamin, a form of B12. It is designed as a supplement in addition to your dietary B12.

As with any dietary supplement, consult your doctor before using this product, especially if you take medication on a regular basis, are about to have surgery, or are under regular medical supervision.

Do not use Vitamin B12 if

  • You are allergic (hypersensitive) to any of the ingredients in the supplement (these are listed below)

How to use

Take 1 tablet once daily or as directed by a professional. Do not exceed the stated dose.

If you take too much Vitamin B12

Though daily high doses of B12 are unlikely to cause harm in most people, it may cause the following symptoms:

  • Headache

  • Nausea and vomiting

  • Diarrhoea

  • Fatigue or weakness

  • Tingling sensation in hands and feet


  • Always consult your health practitioner before taking nutritional supplements.

  • If you are pregnant, breastfeeding, taking medication or due for surgery, please consult your healthcare practitioner before use.

  • Discontinue use and consult a doctor if adverse reactions occur.

  • This product should not be used as a substitute for a balanced and varied diet or a healthy lifestyle.

  • This product is not intended to cure, prevent, or treat any diseases.

  • The ingredients in this product may vary slightly in colour and appearance but this will not affect the overall quality of the product

  • For allergens see ingredients in bold.

  • Keep out of reach and sight of children.

Taking Vitamin B12 with other medicines

Certain dietary supplements can interact with medications, which may lead to reduced medication effectiveness or adverse effects. Talk to your doctor about taking a dietary supplement to ensure it is safe for you to take and doesn’t interact with any medication (prescription or otherwise) you are taking.

In general, avoid taking your supplements at the same time as your medication as this can impact the absorption and efficacy of your medical treatment.

Allergies and intolerances

We constantly review the information on our Safety Information Pages and to make sure our products meet our patients’ needs. While we strive to make sure our information is as accurate as possible, those with allergies and intolerances should always check product labelling, warnings, and directions provided with the product before use or consumption.

Nutritional Information:



Vitamin B12



*Nutrient Reference Value


Bulking agents (Di-Calcium Phosphate, Microcrystalline Cellulose), Methylcobalamin

(Vitamin B12), Anti-caking agent (Magnesium Stearate).

Vegan/vegetarian status

This product is suitable for vegetarians and vegans.


Store in a cool, dry place. For best before end, see side of pack.


Food supplements are not a substitute for a varied and balanced diet and a healthy lifestyle. If you are pregnant, planning to become pregnant, breastfeeding, have a medical condition or are taking any medications, please consult with your doctor before use. Discontinue use and consult a doctor if adverse reactions occur. For adult use only. Keep out of reach of young children. Do not use if seal under cap is broken or missing

In case of an urgent medical problem, please contact NHS 111 via or by calling 111. NHS 111 is available 24 hours a day, 7 days a week.

For non-urgent clinical queries, please contact our clinical team at [email protected]

Did this answer your question?