Hormonal imbalances
Determine if hormones, like Free T4 and TSH, are playing a role in your weight changes, influencing your metabolism or affecting your overall health.

Feeling tired, gaining weight unexpectedly, or struggling with sugar cravings? Your metabolism could be out of balance, and this test helps you find out why. By measuring key markers linked to energy, weight regulation, and blood sugar control, this test gives you a clear picture of what’s going on inside, so you can take proactive steps towards better health.
Hormonal imbalances
Determine if hormones, like Free T4 and TSH, are playing a role in your weight changes, influencing your metabolism or affecting your overall health.
Diabetes indicators
Check your HbA1c levels, a key marker for diabetes.
Cholesterol and heart health
Examine your cholesterol, LDL, HDL, and triglycerides, giving a clear picture of heart health.
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Our Complete Metabolic Health Blood Test is designed to help uncover what could be driving changes in your energy, weight, or overall wellbeing. It measures key biomarkers that can affect how your body produces and uses energy, including blood sugar (HbA1c), cholesterol, thyroid hormones, and liver and kidney function.
Why women choose this test:
It can help to give you insight into energy levels and weight changes.
Clinician-reviewed results with easy-to-understand insights
Order your at-home test and get free 48-hour letterbox delivery.
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Follow the simple instructions in your blood test. Return your sample for free.
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Get your personalised results with actionable insights from our experts in 3-5 days.
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Specialists in medicine, nutrition, performance, and diagnostics.

Zoe Griffiths
VP of Behavioural Medicine
BSc (Hons) RD SCOPE

Abby Watts
Senior Nurse Prescriber
BSc Adult Nursing, IP

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Each blood test is easy to use, even if you’ve never used a home blood test kit before.
It only takes a small amount of preparation to successfully collect a blood sample and all the equipment you need to do so is included in the kit.
A summary of how to use the tests:
Wash your hands in warm water for 4 minutes and then dry them.
Use the lancet provided to prick your finger and collect a blood sample.
Post your sample to our accredited partner laboratory using the prepaid envelope included with your test.
Full instructions are provided with your test, which you should read thoroughly before use to ensure the best results.
To learn more about how to take a blood test at home, click here.
We recommend taking the Complete Metabolic Health Blood Test on a regular basis so you can track progress or changes to your markers. If you're unsure, reach out to our clinical team.
Your blood test results will be presented in an easy-to-understand format, with each biomarker thoroughly explained. Any values that deviate from the optimal range will be distinctly highlighted to indicate abnormal levels. Additionally, a clinician will examine your test and provide a comprehensive, free report. This report will not only clarify your results but also offer tailored recommendations for your next steps in managing your health.
This test provides insights into potential medical reasons why you’re struggling to lose weight, but weight can be influenced by numerous factors, including diet, activity levels, and genetics. Clinicians and health coaches can help you pinpoint exactly what’s driving your weight.
Each test is a finger prick test, so you may feel a small scratch when you use the lancet provided with it to take a blood sample. This is only temporary, and any discomfort should subside swiftly afterwards.
You should receive your blood test results three to five working days after you post your blood samples.
You’ll get an email notifying you that your results have arrived in your Numan account, so keep an eye on your inbox so you don’t miss them. Additionally, you’ll receive a written review of your results from one of our clinicians, which you can read alongside your results to help you understand them.
Once they’re in your account, you can view your results any time you wish. You can also view them in-app and save your results as a PDF to help you keep track of them (and show them to your GP if need be).
The Chol:HDL ratio provides insight into the balance between good and total cholesterol in your blood. This is important because it gives you crucial insights into both your heart health and weight, allowing you to track changes and understand the impact your lifestyle has on your body.
Adequate testosterone levels can help maintain lean muscle mass, boost metabolism, and influence fat storage, hence playing a role in weight management.
The Complete Metabolic Blood Test can only indicate rather than diagnose health issues. If you’re worried and suspect you might have an underlying health condition, we advise speaking to your regular doctor first. If you get any unexpected or unusual test results, this should also be flagged and discussed in more detail with your doctor.
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