Private Magnesium Test London
Measure magnesium levels - essential for muscle function, nerve transmission, heart rhythm, and bone health.
Magnesium (Serum)
Test fee £50 + £50 phlebotomy fee (per visit)
- Results in 1 day"
- UKAS accredited laboratory
- Professional phlebotomy service
- Confidential results portal
Or call 020 7183 2362
Pay at clinic on the day of your appointment
Magnesium Test – Private Testing in London
The Magnesium Test is available at South Kensington Medical and Dental, our CQC-registered clinic in South Kensington, London SW7. This test is priced at £50. A £50 phlebotomy fee applies per visit for blood collection. It requires a venous blood sample, and results are typically available within 1 day.
Magnesium is involved in over 300 enzymatic reactions including energy production, muscle and nerve function, blood glucose regulation, and bone development. Deficiency is common but often undiagnosed.
Who Should Consider the Magnesium Test?
Individuals with muscle cramps, tremor, fatigue, palpitations, or insomnia. Those taking proton pump inhibitors, diuretics, or certain antibiotics which can deplete magnesium. Patients with diabetes, alcohol dependency, or malabsorption conditions.
Serum magnesium may appear normal even when total body stores are depleted, as only 1% of body magnesium circulates in the blood. Clinical symptoms should guide supplementation decisions.
A trained nurse collects the blood sample by standard venepuncture, a straightforward procedure that typically takes around five minutes. Our clinic is on Old Brompton Road, directly opposite South Kensington tube station (Piccadilly, Circle, and District lines). No GP referral is needed — book online or call 020 7183 2362.
Check Magnesium Levels
Magnesium is involved in over 300 enzymatic reactions and deficiency is common but often missed.
- Muscle cramps/spasms
- Heart rhythm issues
- Fatigue investigation
- Bone health
- Anxiety/sleep issues
- Diabetes management
How It Works
Book Online
Choose a convenient date and time
Visit Our Clinic
20 Old Brompton Road, South Kensington
Quick Blood Draw
Professional phlebotomy, 5 minutes
Get Results
Results in 1 day"
Frequently Asked Questions
Common questions about this blood test
Visit Our London Clinic
Central London location with excellent transport links
Address
South Kensington Medical & Dental
20 Old Brompton Road
South Kensington
London SW7 3DL
Getting Here
- 2-minute walk from South Kensington tube
- Circle, District & Piccadilly lines
Opening Hours
- Monday, Wednesday9am - 6pm
- Tuesday, Thursday9am - 8pm
- Friday8am - 5pm
- Saturday10am - 4pm
- Sunday10am - 4pm
Contact
Ready to Book Your Test?
No GP referral needed. Book online and get tested at our South Kensington clinic. Results within 1 day".
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Meet Our Medical Team
Our experienced medical team is fully qualified and registered with the GMC and NMC, delivering safe, high-quality care in line with the highest professional standards.
Because our patients deserve nothing less.
Registered. Regulated. Trusted.
At South Kensington Medical & Dental, we are fully registered with the Care Quality Commission (CQC) and our clinicians are registered with the relevant UK regulatory bodies, including the GDC and GMC. Our dentists, dental nurses and medical professionals deliver care that meets the highest clinical, safety and ethical standards, because our patients deserve nothing less.





