Vitamin B12 (Total)

Measures your B12 levels which are vital for energy, concentration, and nerve function. Ideal for vegetarians, vegans, or those with fatigue or memory issues. Helps ensure you maintain optimal levels.

★★★★★4.9
GPhC Registered
Confidential
Results in 72h
Complete Profile
Price range: £49.00 through £69.00

Choose Your Test Method

Added to cart!

Your item has been successfully added to the cart.

View Cart
Doctor's commentary included for free

Results in 72 Hours

Fast turnaround time

Doctor’s Commentary

Expert interpretation included

Free Delivery

Discreet packaging to your door

Confidential

Private results

Description

The Vitamin B12 (Total) blood test measures the level of vitamin B12 in your bloodstream. Vitamin B12 is an essential nutrient involved in red blood cell production, nerve function, and energy metabolism.

Low vitamin B12 levels can develop gradually and may not cause immediate symptoms, but deficiency can have significant effects on blood health and the nervous system if left untreated. This test provides a reliable way to assess your vitamin B12 status and identify whether further investigation, dietary changes, or supplementation may be required

Why This Test?

Vitamin B12 plays a crucial role in maintaining healthy blood cells and normal neurological function. It is particularly important for:

  • Red blood cell production
  • Nerve and brain health
  • Energy metabolism
  • DNA synthesis

Vitamin B12 deficiency is relatively common, especially in people who:

  • Follow a vegetarian or vegan diet
  • Have digestive conditions affecting absorption
  • Take certain medications (such as metformin or acid-reducing medications)
  • Are over the age of 50

Low levels may contribute to fatigue, weakness, numbness or tingling, poor concentration, memory issues, or anaemia. A blood test is the most reliable way to identify deficiency and guide appropriate treatment.

Uses of This Test
  • Investigate fatigue or low energy
  • Support plant-based or vegetarian diets
  • Investigate neurological symptoms
  • Assess unexplained anaemia
  • Monitor vitamin B12 supplementation

What We Test

Biomarkers analysed by accredited UK laboratories

1
Biomarker Tested
  • Vitamins

    • Vitamin B12 (Total)

What to Expect

Booking a blood test with us is simple and designed around your convenience. Choose between an at-home finger-prick test or an in-clinic phlebotomy appointment at our Longridge Health Clinic. After placing your order, our team will be in touch to guide you through the next steps and ensure the process is smooth from start to finish.

Home Finger-Prick Testing

Enjoy the convenience of testing from home with a simple, easy-to-use kit delivered straight to your door. Your kit includes clear instructions, sterile equipment, and a prepaid return envelope for sending your sample to the laboratory.

This option is ideal if you prefer flexibility, have a busy schedule, or want to check your health privately without visiting the clinic.

Results are processed by accredited laboratories, giving you the same clinical accuracy as an in-clinic test. Expect results within 72 hours!

Why Use This Service:

  • Perfect for busy schedules

  • Results within 72 hours

  • Delivery across the UK

  • Private & discreet

  • Avoid travelling to Preston

  • Cost effective alternative

In-Clinic Blood Testing At Longridge, Preston

If you’d rather leave everything to a qualified professional, our in-clinic blood testing service is the most comfortable and hands-off experience. Once you complete your order, we’ll contact you to arrange a convenient appointment time.

Your sample will be taken by a trained phlebotomist, making the process quick, smooth, and reassuring - especially if you’re nervous around blood or struggle with finger-prick tests.

We send off all samples the same day to the lab to be processed so results can be expected within 72 hours.

Why Use This Service:

  • Hands-off, professional experience

  • High-quality samples for complex tests

  • No risk of “not enough sample”

  • Support at every step

  • No posting or packaging required

  • Convinient appointment times

Taking Charge Of Your Own Health Has Never Been Easier

Worried about your wellbeing?

If you’re experiencing unexplained symptoms such as fatigue, weight loss, or other issues, a comprehensive blood test may be the key to discovering potential underlying health problems.

Need to monitor a health condition?

Blood tests offer essential insights into various aspects of your health, from detecting deficiencies to evaluating immune functions.

Enhancing Performance and Fitness?

Whether you’re training for a sport or keeping track of your fitness progress, a blood test serves as an excellent foundation for your performance improvement journey.

All Our Tests Include:

No GP Referral

Order directly - no waiting for appointments

Fast Results

Detailed analysis within 72 hours

Doctor's Commentary

Expert interpretation of your results included

Secure & Confidential

Discreet service and consultations

Frequently Asked Questions

  • Qualified Pharmacists
  • Flexible Appointments
  • Top Customer Service

Our home finger-prick tests use the same accredited laboratories as our clinic tests. While clinic tests allow for more comprehensive panels, home tests are highly accurate for the parameters they measure.

No, you don’t need a GP referral. You can book directly with us for any blood test. We are a private clinic offering direct access to comprehensive blood testing.

We will only draw blood from those aged 16 and above due to legal requirements.

If you have used our clinic to complete a blood test, we send off all samples the same day to the lab to be processed. If you have used a home test kit, then once your sample has been sent off the lab will analyse your sample. Results are usually received within 72 hours.

Your home blood test kit will contain easy-to-follow instructions on how to take your own finger blood sample. If you have any concerns or questions prior to using the kit, please contact our phlebotomists who will be happy to assist.

There is no preparation required prior to taking any of the blood tests. Please simply remember to stay hydrated prior to your appointment. This is to help your veins dilate better to enable a quick and efficient blood sample to be taken and reduce the risks of feeling faint following your blood test.

Please inform the phlebotomist before your test if you are currently taking any blood thinning medication.

Fasting is not required for most blood tests. However, if your profile includes cholesterol tests and you’ve previously had high levels, consider fasting for 8 hours beforehand. While not essential, fasting can provide more accurate results.

Note: Fasting means abstaining from any food and drink, except for water.

Browse Similar Tests

Folate (Serum)

Measures folate levels essential for healthy blood cells, energy, and pregnancy support. Low levels may cause fatigue, weakness, or mood...

  • Vitamins

    • Folate
£69.00

Vitamin Profile

A complete review of your vitamin status including key markers for energy, immunity, and metabolic health. Ideal for anyone wanting...

  • Vitamins

    • Vitamin B12
    • Folate
    • Vitamin D (25-OH)
Price range: £99.00 through £139.00

Iron Status Profile

A complete analysis of your iron levels, ferritin, and transferrin saturation. Helps diagnose iron deficiency, overload, or unexplained fatigue. Essential...

  • Iron Studies

    • Iron
    • Ferritin
    • Total Iron-Binding Capacity (TIBC)
    • Unsaturated Iron-Binding Capacity (UIBC)
    • Transferrin Saturation
Price range: £49.00 through £69.00

Magnesium (Serum)

Measures magnesium levels essential for muscle function, energy, and nerve health. Low levels can cause cramps, fatigue, or poor sleep....

  • Mineral

    • Magnesium (Serum)
£69.00

Calcium

Measures calcium levels essential for healthy bones, heart function, and nerves. Ideal if you’re experiencing muscle cramps, tingling, or bone-related...

  • Vitamins & Minerals

    • Calcium
£79.00

Vitamin D (25-OH)

Checks your vitamin D levels essential for immunity, bone health, and mood. Many people in the UK are deficient. A...

  • Vitamin

    • Vitamin D (25-OH)
Price range: £59.00 through £69.00