1,25-dihydroxyvitamin D (calcitriol)
This test measures 1,25-dihydroxyvitamin D, the biologically active form of vitamin D. It is used to investigate calcium imbalance, kidney disease and...
Our Weight-Loss Management programme offers a medically supervised approach to sustainable fat loss. It combines blood testing, clinical insight, and personalised strategies to address the root causes of weight gain.
Turnaround time
Results available 1 day after arrival in laboratory.
Biomarkers count
1
Professional phlebotomist comes to you
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Visit our clinic for your test
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Home visits require at least 24 hours notice.
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SelectedWhat is Weight-Loss Management?
Weight-Loss Management is a clinically guided programme designed to help individuals lose weight safely and sustainably. Rather than focusing on calorie restriction alone, it evaluates metabolic, hormonal, nutritional, and lifestyle factors that influence body weight.
The programme typically includes an initial health assessment, targeted blood tests, and an individualised plan tailored to your physiology and goals. This approach recognises that weight gain is often driven by factors such as insulin resistance, hormonal imbalance, micronutrient deficiencies, or chronic inflammation.
Medical oversight ensures that recommendations are evidence-based, appropriate for your health status, and adjusted as your body responds over time.
Why do I need Weight-Loss Management?
Many people struggle to lose weight despite dieting or exercising because underlying biological factors are not addressed. Without identifying these drivers, weight loss may be slow, inconsistent, or followed by regain.
Weight-Loss Management is particularly helpful if you have tried multiple approaches without success or if weight gain is affecting your health. A structured, medical approach improves safety, effectiveness, and long-term results.
You may benefit from Weight-Loss Management if you experience:
Benefits of Weight-Loss Management
Step-by-step – How we offer Weight-Loss Management
Option 1: Clinic-based programme (UK-wide)
Option 2: Home or hotel visit (+£60, UK-wide)
Your results explained
Weight-Loss Management often includes blood markers related to metabolism, hormones, and nutrition. Results are interpreted in context to guide your plan.
Sub-optimal results
Markers outside optimal ranges may indicate insulin resistance, hormonal imbalance, or nutritional deficiencies that hinder weight loss. Addressing these improves your ability to lose weight effectively.
Optimal results
Results within optimal ranges suggest your body is metabolically well-positioned for weight loss. The focus is on lifestyle optimisation and sustainable fat reduction.
Elevated or abnormal results
Certain elevated markers may increase health risk or require medical follow-up. These are addressed carefully within your weight-loss plan.
Simple steps to get your results
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsFollow these guidelines for accurate results
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
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