Private Vitamin Blood Tests

We offer a range of private blood tests to help determine a possible deficiency within certain vitamins e.g. vitamin B12, vitamin D, etc. The tests can also be used to determine the effectiveness of treatment. We have listed some of the common tests in the table below but further tests are available on request.

A consultation is required with a healthcare professional before any blood test is done. We may need to consult with your GP regarding any blood tests previously completed. Some patients will be referred back to their GP for treatment.

Private Vitamin Injections

At our private clinic in Woodhouse Medical Practice, we provide a range of vitamin injections depending on your medical requirement. A consultation is completed with our healthcare professional and a blood test may need to be completed before the administration of any injections to ensure this is medically suitable for you.

Vitamin D helps the body absorb calcium and phosphate, which is needed for healthy bones and muscles. There is some evidence to suggest that it can help prevent some diseases such as cancer, diabetes and heart disease.

What are the symptoms of Vitamin D deficiency?

People can experience bone pain, lower back pain and muscle pain. Other symptoms can include tiredness and a lack of energy, frequent infections, hair loss and frequent infections.

Who is at higher risk of developing Vitamin D deficiency?

Vitamin D deficiency is common in the UK and certain groups have a higher risk than others. These are as follows:-

Diagnosing Vitamin D deficiency

Vitamin D blood tests are available to help diagnose any deficiency. This can be done in our private vaccination clinic or at your own GP practice, if your doctor feels this is clinically suitable. However, if a new deficiency is diagnosed, we would recommend seeing your GP in the first instance. 

Vitamin D Treatment

The best way of increasing vitamin D levels is by increasing ultraviolet B sunlight exposure of at least the face and arms for 20 minutes, 2-3 times per week. However, people with melanomas should seek specialist advice.

Increasing vitamin D intake through the diet can also help. Foods that are rich in vitamin D include fortified cereals and fat spreads, red meat, liver, egg yolks and oily fish.

In some patients, sun exposure and dietary intake have little effect on vitamin D levels, so oral vitamin D supplements are recommended. The dose and frequency depends on the level of deficiency, which is established through a blood test.

If oral supplements fail to improve vitamin D levels, we then recommend having a course of vitamin D injections.

Vitamin D Injections

Vitamin D toxicity can occur in high doses. High doses of vitamin D over prolonged periods of time can lead to higher calcium levels, which can then weaken the bones and damage the heart and kidneys. Therefore, it is essential to have blood tests completed before and after treatment. This is to ensure the safety and effectiveness of treatment (please see further information below).

There are two types of vitamin D injections: ergocalciferol (vitamin D2) and colecalciferol (vitamin D3). Ergocalciferol is given first as this injection is licensed in the UK. If a patient fails to respond to 2 of these injections or has tried it previously with little effect, then colecalciferol injection can be given instead. This is not licensed in the UK and is manufactured abroad.

Vitamin B12 is required for physical growth and red blood cell production. It is also required for the absorption of folic acid and carbohydrates from food and for keeping the nerve system healthy.

What are the symptoms of Vitamin B12 deficiency?

The most predominant feature of B12 deficiency is tiredness and lack of energy. Other symptoms include sore mouth and tongue, numbness and tingling in the arms and legs, memory loss, mood swings and depression.  When treating someone for B12 deficiency, tiredness is the most notable symptom to improve.

Who is at higher risk of developing Vitamin B12 deficiency?

Vitamin B12 deficiency is usually as a result of poor absorption of Vitamin B12 or poor dietary intake. People that are most affected include:-

  • Vegans
  • People over the age of 50
  • Patients with thyroid disorders
  • Patients with autoimmune disorders such as Coeliac disease or Crohns disease

Diagnosing Vitamin B12 deficiency

Vitamin B12 blood tests are available to help diagnose any deficiency. This can be done in our private vaccination clinic or at your own GP practice, if your doctor feels this is clinically suitable. However, if a new deficiency is diagnosed, we would recommend seeing your GP in the first instance. 

It is worth noting that as the body only requires a small amount of the vitamin daily, a deficiency may take months or years to develop. Furthermore, the total amount of Vitamin B12 may appear within normal range but the active B12 taken up by the cells maybe lower.

Vitamin B12 (hydroxocobalamin) Injection

Vitamin B12 injections can be used to help prevent and treat anaemia due to vitamin B12 deficiency. As vitamin B12 is water-soluble, the body will excrete any amount not required by the body.

Vitamin B12 injections vs Oral Vitamin B12 supplements

B12 comes in different forms such as an injectable solution and oral tablets. It can also be part of multivitamin tablets.

It is known that, only a small proportion of the oral B12 gets absorbed, that is even if there are no abnormalities of the gut affecting absorption. The Vitamin B12 injection will act quicker, and as there will be a higher concentration in the body, patients will feel the effects from this much sooner than with tablets.


The B group of vitamins are involved in the development and maintenance of the nervous system (brain and nerves) and the formation of blood cells. They help convert food into energy as well as acting as an antioxidant.

Vitamin C is an antioxidant and is responsible for maintaining healthy cell structure and producing an important protein, known as collagen, which is found in the skin, bone, cartilage and tendons. Vitamin C has been linked to boosting the immune system although more robust clinical trials are required to confirm this.

Who is at higher risk of developing Vitamin B and C deficiency?

Vitamins B and C are only obtained from the diet. Vitamin B and C deficiencies can arise in the following circumstances:-

Vitamin B and C (Pabrinex) Injection

Pabrinex injection has traditionally been used to treat patients who require rapid replacement of the water-soluble B and C vitamins. This injection contains water soluble vitamin C and vitamin (B1 (thiamine), B2 (riboflavin), B3 (nicotinamide) and B6 (pyridoxine). As the vitamins are water-soluble, the body will excrete any vitamins not required by the body.