Vitamin B6 (Pyridoxine) Blood Test


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Vitamin B6 (Pyridoxine) Blood Test

About this test

Vitamin B6, also known as pyridoxine, is a water-soluble vitamin which helps brain function, the body convert protein to energy and helps the immune system produce antibodies.

Vitamin B6 helps maintain normal nerve function and form red blood cells. The body uses it to help break down proteins. The more protein you eat, the more vitamin B6 you need.

High levels of vitamin B6 can cause neurological disorders and numbness. Deficiency of vitamin B6 can cause mouth and tongue sores, irritability, confusion, and depression.

Good sources of Vitamin B6 include nuts, legumes, eggs, meats, fish, whole grains, and fortified breads and cereals.

How it works

Collect Sample

We send you an easy-to-use kit to collect your blood sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

Important Information

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.

Tests Included


Vitamin B6 is a water-soluble vitamin found in foods including some meat, poultry, fish, seafood dairy, lentils, beans, carrots, spinach, bananas, brown rice and whole-grains.

All B vitamins are crucial for the conversion of food into fuel and metabolising fats and proteins. It is important for the nervous system and brain function as well as a healthy liver, hair, skin and eyes. It also strengthens the immune system. Vitamin B6 in particular helps the body make neurotransmitters to carry signals between cells. It is also important for controlling homocysteine levels, brain function, hormone and red cell production and the immune system.

Although rare, a vitamin B6 deficiency can cause muscle weakness, nervousness, mood changes, difficulty concentrating and short-term memory loss.

Elevated vitamin B6 is likely to be due to over-supplementation. Although high levels are rarely dangerous, over-supplementation can cause temporary neurological disorders. Vitamin B6 supplements can also interact with other medication and cause a reaction.

Blood sample collection kit

We will send you your Vitamin B6 (Pyridoxine) Blood Test blood sample collection kit together with the details of a convenient clinic where you can go and have your sample taken.

Postage & packaging

Your Vitamin B6 (Pyridoxine) Blood Test includes 1st class postage and packaging for you to send your blood sample directly to our laboratory for analysis. If you live in an area where you cannot rely on the post or you simply want to ensure that your sample arrives at the laboratory the following day, you may wish to send your blood sample guaranteed next day delivery for extra reassurance.

Private laboratory analysis

Your blood sample will be analysed at one of our chosen laboratories. You can be assured of fast, accurate results from one of our accredited independent providers of clinical diagnostic tests.

Interpretation of results

Our medical team will comment on out-of-range blood results and give you follow-up advice where necessary. If you need it, a PDF copy of your Vitamin B6 (Pyridoxine) Blood Test results can be downloaded for your doctor.

Secure online account

Once you have placed your order you can visit where you can manage your account, track your orders and view your Vitamin B6 (Pyridoxine) Blood Test results.

Health and Lifestyle tracker

Stay motivated by filling in your online health and lifestyle questionnaire and seeing how improvements in your lifestyle can influence your results. Your medical and family history gives us vital information when interpreting your results.

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