Weight Loss Blood Test
£99
Test Overview
What is the Weight Loss Blood Test?
Our Weight Loss Blood Test analyses key hormones and metabolic markers to help identify factors that may be affecting your ability to lose weight.
This test is ideal if you:
- Are struggling to lose weight despite diet and exercise
- Experience fatigue, cravings, or low energy
- Are starting or currently on a weight loss programme
- Want a personalised, data-driven approach to weight loss
It’s also suitable if you want to better understand how your body responds to food, exercise, and lifestyle changes.
Weight loss is not just about calories — your body’s internal chemistry plays a major role.
This test looks at key areas that can impact weight loss, including:
- Hormonal balance (e.g. cortisol and testosterone)
- Thyroid function (metabolism regulation)
- Blood sugar control (insulin resistance)
- Inflammation levels
- Cholesterol and fat metabolism
- Iron levels and energy production
By assessing these markers together, this test helps identify potential barriers to weight loss and supports a more personalised and effective approach.
This test measures 10 biomarkers across 6 categories:
- Hormones (2 biomarkers)
- Thyroid (2 biomarkers)
- Diabetes (1 biomarker)
- Inflammation (1 biomarker)
- Iron (1 biomarker)
- Cholesterol (3 biomarkers)
These markers provide a well-rounded overview of the factors influencing metabolism, energy, and fat storage.
- You must be 18 years or over to take this test
- Fasting is required for 8–12 hours before your test
What biomarkers do we test?
- HDL: HDL helps remove excess cholesterol from the bloodstream, reducing the risk of heart disease.
- LDL: LDL can lead to plaque build-up in arteries, increasing risk of heart disease and stroke.
- Triglycerides: Triglycerides are fats in the blood that can increase cardiovascular risk if elevated.
- Iron: Iron is essential for producing haemoglobin, allowing oxygen transport around the body.
- Testosterone: Supports energy, muscle mass, libido and overall wellbeing.
- Cortisol: Regulates stress response, metabolism and energy.
- TSH: Regulates thyroid hormone production.
- Free T4: Helps regulate metabolism and energy.
- hs-CRP: Measures inflammation linked to disease risk.
- HbA1c: Reflects blood glucose over 2–3 months.
More Information
If you’re finding it difficult to lose weight, there may be underlying factors affecting your progress.
This test helps identify whether issues such as:
- Hormonal imbalance
- Slower metabolism
- Blood sugar instability
- Chronic inflammation
may be contributing to weight gain or resistance to weight loss.
Understanding these factors allows you to:
- Tailor your nutrition and lifestyle
- Optimise your weight loss programme
- Track improvements over time
This test works particularly well alongside structured weight loss programmes, helping you personalise your approach based on real data.
Results are typically available within 3–5 working days from when your sample reaches the laboratory.
Please let us know prior to your appointment if any of the following:
• You have a disability
• You have any allergies that we should be aware of
• You have a medical condition that we need to be made aware of
• If you do not speak and/or read and understand English
• Anything else we should be made aware of
Do not book an appointment if either of the following apply to you:
You are under the age of 18 as we have a strict over 18 policy (We may need to ask for proof of age and ask to see ID prior to your appointment)
Please be aware:
Some people may feel dizzy and/or faint during and after their blood draw. If this has happened to you in the past, please tell the person carrying out the test so they are aware. The maximum attempts that are permitted with your consent will be two blood draw attempts. It is common to have a small amount of bruising after the procedure. This is normal and should resolve after a few days. However, if the area becomes red or swollen, please seek medical advice. Its fine to bring someone with you for support.