Magnesium (Serum) Blood Test
Magnesium (Serum) Blood Test - welzo
Magnesium (Serum) Blood Test - welzo
Magnesium (Serum) Blood Test
Magnesium (Serum) Blood Test
Magnesium (Serum) Blood Test - welzo
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Magnesium (Serum) Blood Test

Magnesium (Serum) Blood Test
Magnesium (Serum) Blood Test - welzo
Magnesium (Serum) Blood Test - welzo
Magnesium (Serum) Blood Test
Magnesium (Serum) Blood Test
Magnesium (Serum) Blood Test - welzo
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metro_1 - welzo

Sale price £10.00
56 Reviews

A Magnesium Blood Test measures the amount of magnesium in your blood. Magnesium is a mineral that is mainly stored in the bones which keeps the bones strong and healthy. 

Results within 2 days
Free next-day delivery
What does it test for?
  • Magnesium - Serum
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Joanna Charice reviewed
"After using the Welzo Tiredness & Fatigue Blood Test due to ongoing tiredness, I found the testing process simple and the results came quickly. They revealed low iron levels. With this knowledge, I adjusted my diet and started iron supplements, which markedly improved my energy. This test was a key part in addressing my fatigue."
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Jordan Waits reviewed
"I simply ordered the test online, received it in the mail a few days later, and took the test in the comfort of my own home using a quick finger prick. The instructions were clear and easy to follow, and the process itself was quick and painless."
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Roxy Richards reviewed
"I followed the recommendations provided by Welzo, and I have to say, I feel so much healthier now. I have a lot more energy, and I just feel better overall. It's amazing how much of a difference small changes can make"
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Mimi Reviews reviewed
"The Welzo Female Hormone Test was a quick and effective way to shed light on my irregular periods. The results were clear and led to actionable insights, improving my discussions with my healthcare provider. Overall, a very positive experience."
  • Biomarkers
  • Information

Magnesium (Mg)

Magnesium is an important mineral majorly found in bones and tissues of the human body. Magnesium supports the functioning of muscles, building proteins and strong bones and helps with the absorption of potassium and calcium. The deficiency of magnesium is linked to health issues such as deteriorating bone health, migraines, depression, cardiovascular disease and type 2 diabetes. Magnesium (Serum) blood test can detect the level of magnesium and help you identify if you need to increase your intake of foods rich in Magnesium.

Have you been feeling any of these symptoms lately?

The Magnesium (Serum) blood test is suitable for individuals experiencing one or more of the following symptoms: 

1. Nausea 

2. Weakness 

3. Muscle twitches and cramps

4. Neurological issues such as epilepsy, depression 

5. Weak Bones

6. Rapid Heartbeat

7. Abnormally High Blood Pressure

Additional Information

If you have low levels of magnesium, you may experience symptoms such as:




-Muscle cramps

-Problems with heart rhythm

Your doctor may order a magnesium blood test if they are concerned about your magnesium levels. The test can help determine if you need treatment for low magnesium levels.

Additional Insight from Dr Sameer Nakedar, MBBS, MRCGP, PGCert

Low magnesium levels may result from gut and kidney loss or certain medications. Symptoms can include muscle weakness, cramps, pins and needles, irregular heartbeats, raised blood pressure, weakness, seizures, drowsiness, or confusion. Fibre-rich foods contain magnesium, such as green leafy vegetables, bananas, wholemeal bread, brown rice, avocados, and some fish and meat. 

High magnesium levels may be caused by over-supplementation or by using too much of certain medications, such as antacids. Symptoms can include stomach upset, breathing problems and eye irritation, heart arrhythmias, weakness, nausea, and vomiting.

Why take the test?

The Magnesium (Serum) Blood Test screens for the deficiency of Magnesium in your blood. The blood test sample will detect the presence of Mg and identify if you need treatment for Hypomagnesemia. Along with the report, we also provide our Certified Doctors comments. Magnesium can be harmful either way, meaning excessive and reduced levels in the blood can cause health problems. Magnesium deficiency is often characterized by weakness, irritability, cardiac arrhythmia and vomiting. It has been linked to neurological issues such as depression and migraines. The human body regulates the level of magnesium in the body to prevent deficiency and eliminate excess of the element. However, individuals with type 2 diabetes and those with alcohol abuse disorder have a higher risk of reduced levels of Magnesium in their blood. If you or anyone you know is feeling any of these symptoms described above, they may be experiencing a lower level of Magnesium in their blood.

of young people in their twenties have intakes below the Lower Reference Nutrient Intake (LRNI)
A 2018 Study by the National Library of Medicine found that younger UK adults in their twenties had significantly higher magnesium shortfalls than older adults. Research suggests that magnesium deficiencies might be a significant contributor to conditions such as diabetes, cardiovascular disease and hypertension.
of UK males and 12% females in 2018 had magnesium intake levels below the LRNI
According to the National Library of Medicine over one in 10 adults had magnesium intakes below the Lower Reference Nutrient Intake.

Experts Opinion on Magnesium Tests

"Magnesium is a common mineral found in every cell of the human body. It is essential for over 300 vital enzyme processes, which contribute to the body's muscle and nerve function, energy production, blood pressure control, and bone maintenance.

This test can help you check if your magnesium levels are normal, too high (also called hypermagnesemia) or too low (known as hypomagnesaemia)."

Dr Sameer Nakedar
Experts Opinion on Magnesium Tests

How to take a Magnesium (Serum) Blood Test Test

Collecting a blood sample for your finger prick home test is straightforward. Watch the video below for more details on how to take a home blood test.

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    Pick your home test

    We have a wide range of tests to cover your health needs. Order with next day United Kingdom delivery and avoid sitting in a doctor's office or clinic. Use our quiz to find the right test for you.

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    Take your test

    Activate your test and collect your sample in the morning. Return your sample on the same day, using the prepaid shipping label provided. Samples use a simple finger prick collection method that takes around 5 minutes to complete.

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    Results within 48 hours

    You'll get verified results and insights into what the biomarkers mean. Order now to become a healthier you!

Magnesium (Serum) Blood Test Information

Specification of Magnesium (Serum) Blood Test

  • Test name: Magnesium (Serum) Blood Test
  • Also known as & related tests:
  • Biomarkers:
  • Test tube:
  • Brand: Welzo
  • Turn around time: Approx. 24 hours
  • Lab test ranges:
  • Test Kit Marking: MHRA/UKCA
  • Location of Lab: United Kingdom

What is a Magnesium (Serum) Blood Test?

A Magnesium (Serum) Blood Test is a home health test offered by Welzo. The Magnesium (Serum) Blood Test can be taken from the comfort of your home using a finger prick sample, which is then sent back to our lab for analysis and interpretation.

What does a Magnesium (Serum) Blood Test for? 

A Magnesium (Serum) Blood Test tests for the following: .

What are the benefits of a Magnesium (Serum) Blood Test?

Checking your health through the use of Magnesium (Serum) Blood Test is an important way to track your health. Home testing offers the convenience of conducting health assessments in the comfort of your own home, while enabling quicker, more private results without the need for visiting a healthcare facility.

Can a GP review my Magnesium (Serum) Blood Test?

Yes, Welzo offers a GP review service for the Magnesium (Serum) Blood Test. Follow the link if you would like to have an online GP appointment with your Magnesium (Serum) Blood Test.

Are Magnesium (Serum) Blood Tests available on the NHS?

The NHS offers Magnesium (Serum) Blood Tests subject to eligibility requirements, consultations and local guidelines.

Magnesium (Serum) Blood Test Kit and Ordering

How can a Magnesium (Serum) Blood Test be ordered?

A Magnesium (Serum) Blood Test can be ordered online through Welzo's secure checkout. Select the Magnesium (Serum) Blood Test and add the patient's name and details, then checkout for next-day delivery.

What is included in the Magnesium (Serum) Blood Test test kit?

The Magnesium (Serum) Blood Test contains the following items in the test kit:

  • 1 x UN3373 Test Kit for Biological Substances Category B (test kit design may vary from images displayed online depending on the test selected.
  • 1 x Free Return Label 
  • 1 x Finger Prick Lancet / Urine Sample Pouch or Swab (depending on the test ordered)
  • 1 x Cleansing Wipe/ Alcohol Swab

Magnesium (Serum) Blood Test Biomarkers and Results

What biomarkers are tested for in a Magnesium (Serum) Blood Test?

The Magnesium (Serum) Blood Test checks for the following biomarkers:

What are the results ranges for a Magnesium (Serum) Blood Test?

Magnesium (Serum) Blood Test reference ranges vary based on age, sex, population sample and numeric test result ranges. However, once you complete your tests, you will receive clear reference ranges for your Magnesium (Serum) Blood Test.

What is a normal test range for Magnesium (Serum) Blood Test?

The Magnesium (Serum) Blood Test range will be provided on the advanced Welzo reporting panel which will factor in multiple aspects such as age, population size comparison and biological sex.

Magnesium (Serum) Blood Test Procedure and Timing

When should a Magnesium (Serum) Blood Test be taken?

It is best to take a Magnesium (Serum) Blood Test first thing in the morning.

How long does a Magnesium (Serum) Blood Test take?

The typical turnaround for a Magnesium (Serum) Blood Test is 24 hours from receipt at the Welzo laboratory, Monday to Thursday. However, results may come back faster or slower depending on how busy the Welzo laboratory is and if you have requested any biomarkers that take longer to test for. In this case, results can take up to 5 days.

Are there any special preparations required before taking the Magnesium (Serum) Blood Test (e.g., fasting)?

We will let you know via email if there are any special requirements for the Magnesium (Serum) Blood Test. However, typically we recommend you take a Magnesium (Serum) Blood Test first thing in the morning, fasted.

What is the best time to post my Magnesium (Serum) Blood Test?

The best time to return your Magnesium (Serum) Blood Test sample is Monday to Thursday, before 14:00 to ensure the product arrives at our lab on time for same-day analysis.

What sample is required for a Magnesium (Serum) Blood Test?

The Magnesium (Serum) Blood Test requires a capillary blood sample using a that is collected from a finger-prick blood sample.

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Convenient and fast

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Customer Reviews

Based on 2 reviews
Marjory Mastella

The Magnesium Blood Test kit I purchased was easy to use and very efficient. Instructions were clear and the results were accurate. It's a great tool for keeping track of my health from home. Highly recommended!

Diane Devreese

The product provided relief from my symptoms without any unwanted side effects or reactions, which was a huge relief.