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Nutricheck – Vitamin Deficiency Test
Looking to improve your diet and get a better understanding of your overall health and nutrition? Nutricheck home blood test can help.
£109
Results in 2 working days
1 Biomarker
Keep track of your magnesium levels with our at-home blood test. This essential mineral plays a crucial role in various bodily functions, from supporting muscle and nerve function to maintaining a healthy heart rhythm.
£45
What gets tested?
1 Biomarker
Blood sample collection options
WHEN TO TAKE THE TEST?
We recommend you take this test first thing in the morning before breakfast (but after a big glass of water!). Ideally it should be taken the morning after a rest day.
Getting the insights you need to improve your health has never been easier.

It takes 5 minutes to collect a small sample of blood from your finger tip. Post it back to our labs using the Tracked-24 envelope included in your kit.

You will receive your Results within 2 working days in the Forth app, along with the optional doctors comment and detailed report.

The detailed report makes it easy to identify areas that need improving, make changes and track your progress.
This test checks the magnesium levels in your blood serum. 99% of the magnesium in your body is found in your bones, muscles and tissue, with the rest in your blood serum.
Checking your levels can help uncover the causes of symptoms related to high or low magnesium levels.
Symptoms of a magnesium deficiency include;
Symptoms related to high levels of magnesium in your blood include:
Checking for a magnesium deficiency at home is easy with our finger prick blood test. It has everything you need to collect a small blood sample and send it back (for free) to our NHS labs for analysis.
It takes around 15 minutes to complete the test and once the sample has reached our lab, we aim to return your results within 2 working days.
You’ll be able to see your magnesium levels, as well as where they should be for your age and gender.
Magnesium is an essential mineral that plays an important role in over 300 reactions in the body. You should get most of the magnesium you need from your diet, but you can also get magnesium supplements.
Magnesium is needed for:
It can also be helpful for pregnant women, helping with foetal development – especially bone and nervous system development.
Our team of specialist doctors, dieticians and biomedical scientists are here to help you be in the best of health.
This is what our customers ask us about the most. For more information, try our help centre.
How soon will the test arrive?
If you order your test before midday on a Monday to Friday then your kit will be dispatched the same day.
All our kits are sent out via Royal Mail Tracked24, so it should be with you within 1-2 working days.
How secure is my data?
We have strict processes in place to ensure the protection of your data. Following GDPR the company also operates under tight legal rules about the sharing of data which ensures that data is only shared if it is crucial to the delivery of our service. For example, our doctors see customer results at the time of review, however, after review, access to results is withdrawn.
Learn more about your data security.
Can I have someone take my blood for me?
Yes. We offer two options if you do not want to do our finger prick test. The first is a home appointment where a nurse comes to your home to take a blood sample. The second is to visit a Phlebotomy clinic near you that offers a blood sample service.
A blood sample will be taken from your vein and we will provide you with everything you need to give to the nurse to allow them to take the sample.
The nurse will give you the blood sample to return to us using the pre-paid envelope provided.
Does a doctor review my results?
We have a team of doctors and nurses who look at all results and will comment on any results that are outside of the normal range for your age.
Can I download the results to share with my GP?
Yes, you can download your results from your health dashboard as a PDF to share with your GP.
Learn how to export your results.
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Magnesium (MG) Home Blood Test Kit