Vitamin B12 Total Blood Test South Kensington
Vitamin B12 (Total) to check nutritional status and identify potential deficiencies.
Book your test at our South Kensington clinic.
South Kensington Clinic
Vitamin B12 (Total)
Test fee £66 + £50 phlebotomy fee (per visit)
- Results in 1 day"
- UKAS accredited laboratory
- Professional phlebotomy service
- Confidential results portal
Or call 020 7183 2362
Pay at clinic on the day of your appointment
About the Vitamin B12 (Total)
The Vitamin B12 (Total) is an individual blood test offered at South Kensington Medical and Dental, located at 20 Old Brompton Road, SW7 3DL — a two-minute walk from South Kensington tube station. A venous blood is collected by a registered nurse during an appointment lasting approximately 20 minutes. Results are typically available within 1 day" and are delivered securely via email.
Vitamin B12 (cobalamin) is a water-soluble vitamin that is essential for the formation of red blood cells, neurological function, and DNA synthesis. It is primarily obtained from animal-derived foods including meat, fish, dairy, and eggs. The body stores vitamin B12 in the liver, and deficiency may take years to develop. When levels fall below the normal range, it can lead to megaloblastic anaemia and neurological changes. Individuals following a vegan or vegetarian diet, those over 50, and people with gastrointestinal conditions that affect absorption may be at higher risk of deficiency. A blood test measures the circulating level of B12 in the bloodstream.
South Kensington Medical and Dental is a two-minute walk from South Kensington Underground station on the Piccadilly, District, and Circle lines. The clinic is open Monday to Thursday from 9am, with extended hours on Tuesdays and Thursdays until 8pm, Fridays from 8am to 5pm, and weekends from 10am to 4pm. Walk-in availability is limited, so we recommend booking your appointment online in advance. All samples are analysed by an accredited laboratory.
Who May Consider This Test
The Vitamin B12 (Total) may be relevant for a range of individuals. The following are common reasons people choose to have this test:
- Individuals following a vegan or vegetarian diet
- People over 50, as absorption can decrease with age
- Those experiencing persistent fatigue or low energy
- Individuals with gastrointestinal conditions affecting absorption
- People taking long-term proton pump inhibitors (PPIs) or metformin
- Anyone experiencing tingling, numbness, or cognitive changes
How to Prepare
Stay well hydrated
Drink plenty of water before your appointment. Good hydration helps make veins easier to locate and can make the blood draw quicker and more comfortable.
Continue your regular medications
Unless specifically advised otherwise by your doctor, continue taking your prescribed medications as normal before the test.
Bring your confirmation details
Arrive at our South Kensington clinic, 20 Old Brompton Road, SW7 3DL with your booking confirmation. We are a two-minute walk from South Kensington tube. The appointment takes approximately 20 minutes.
Pricing
Vitamin B12 (Total)
Individual test
Phlebotomy Fee
Blood draw by qualified phlebotomist (per visit)
Total
£116Payment is collected at the clinic. The phlebotomy fee is charged once per visit, regardless of the number of tests booked.
Sample Information
Your Results
If any results fall outside the normal reference range, we recommend discussing them with your GP or a qualified healthcare professional.
Nutritional Status Check
Vitamins are essential for energy, immunity, and optimal body function.
- Fatigue investigation
- Dietary concerns
- Vegetarian/vegan diet
- Absorption issues
- Supplementation guidance
- General wellbeing
How It Works
Book Online
Choose a convenient date and time
Visit Our Clinic
South Kensington or City of London
Quick Blood Draw
Professional phlebotomy - 5 minutes
Get Results
Results in 1 day"
Frequently Asked Questions
Common questions about this blood test
You May Also Be Interested In
Other blood tests you may want to consider alongside the Vitamin B12 (Total)
Our South Kensington Clinic
Blood tests available at our South Kensington clinic
South Kensington
20 Old Brompton Road
London SW7 3DL
- 2 min walk from South Ken tube
- Circle, District & Piccadilly lines
Open 7 days a week • Walk-ins welcome • No GP referral needed
Ready to Book Your Test?
No GP referral needed. Book online and get tested at our City of London clinic. Results within 1 day".
What Our Patients Say
Real feedback from our patients at South Kensington Medical & Dental.
Meet Our Medical Team
Our experienced medical team is fully qualified and registered with the GMC and NMC, delivering safe, high-quality care in line with the highest professional standards.
Because our patients deserve nothing less.
Registered. Regulated. Trusted.
South Kensington Medical & Dental is registered with the Care Quality Commission (CQC) and our clinicians are registered with the relevant UK regulatory bodies, including the GDC and GMC. Our dentists, dental nurses and medical professionals deliver care that meets the highest clinical, safety and ethical standards, because our patients deserve nothing less.





