Weight Loss Blood Test
- Oestradiol
- Total Cholesterol
- Total Cholesterol: HDL
- LDL Cholesterol
- HbA1c
- FT3
- Cortisol
- Albumin
- ALT
- GGT
- AST
- Iron
- hs-CRP
- Follicle Stimulating Hormone (FSH)
- Triglycerides
- HDL % of total
- Non-HDL Cholesterol
- TSH
- FT4
- Total Protein
- Globulin
- ALP
- Bilirubin
- Testosterone
- Vitamin D
The UK's Highest Rated Home Testing Provider
- Biomarkers
- Information
Oestradiol
The Oestradiol Blood Test can detect the levels of Oestradiol in the blood. Women who have attained the age of 50 and above, and are on their way to menopause have the lowest amounts of Oestradiol in their blood. This can lead to hot flashes, infertility issues, osteoporosis, night sweats and mood swings. A hormonal imbalance can significantly affect the physical and mental well-being of an individual. Men that are concerned about abnormal breast tissue growth and women facing abnormal menstrual cycles can take the Oestradiol Blood Test to find the underlying issue. Along with the report, we also provide our Certified Doctor's comments.
FSH
Follicle Stimulating Hormone (FSH) is made in the pituitary glands and plays an essential role in sexual functioning. FSH is one of the gonadotropic hormones, the other being LH. FSH helps regulate the women's ovaries and stimulates the growth of ovarian follicles. FSH is also involved in oestradiol products. For this reason, FSH is part of Welzo's cutting edge female fertility home test due to its vital role in healthy female sexual function.
HDL % of total
HDL (high-density lipoprotein) percentage of total calculates the amount of HDL you have compared to your total cholesterol level. This specific test biomarker assesses your cardiovascular risk by calculating the total amount of 'good' vs 'bad' and total cholesterol you have in your blood. Doctors and heart disease assessment calculators use this % of the total to evaluate your overall cardiovascular health.
Total Cholesterol
Total cholesterol measure the total amount of cholesterol in your blood, including HDL and LDL. Cholesterol is created in the liver and plays an important role in multiple bodily functions such as; creating vitamin D and bile and being the membrane of all of your body's cells. Cholesterol helps to transport fatty acids around through the blood, and can act as a great indicator for your heart health, such as predispositions to cardiovascular issues such as a heart attack and heart disease.
HbA1c
Glycated haemoglobin also referred to as HbA1c, is a more accurate long-term measure of glucose levels (blood sugar levels) in your blood. Haemoglobin is part of the red blood cells that carry oxygen through your bloodstream. Testing HbA1c measures long-term glucose levels, as glucose attaches to your red blood cells, with these cells living for around 14 weeks on average. This is ideal for monitoring diabetes and pre-diabetic susceptibility because it can provide insight over a three-month period prior to testing.
Free Triiodothyronine (FT3)
FT3 or free tri-iodothyronine is one of the two critical hormones produced by the thyroid gland. Its deficiency/excess is responsible for most of thyroid-related health issues because of its stronger impact even though it constitutes the lesser fraction as compared to the other hormone, FT4. Menopause blood test detects the amount of FT3 which is not attached to a protein and helps to understand thyroid functioning.
Thyroid Stimulating Hormone (TSH)
TSH (Thyroid Stimulating Hormone) or thyrotropin is secreted by the pituitary gland, located in the head, and can help identify cases of hypothyroidism and hyperthyroidism. Both the excess and under-secretion of TSH can lead to weight loss, anxiety, palpitations, irregular sleep patterns and irregular menstrual cycles. Hypothyroidism is majorly associated with overlapping symptoms such as menopause.
Cortisol
Cortisol is produced by the adrenal gland and has a massive impact on multiple physical and mental functions within the body. Cortisol is a steroid and is often referred to as the "stress hormone" due to it often being released when a person is in a perceived state of "stress". However it is not limited to this role within the body and is also involved in multiple metabolic and immune responses. Please note that cortisol levels fluctuate throughout the day with them peaking when you wake up and being lowest at the end of the day. Therefore it is important to take your blood test first thing in the morning when you wake up to make sure you measure them at maximum capacity.
Alkaline phosphatase (ALP)
Alkaline Phosphate (ALP) is an enzyme that is found in the liver, kidney, bones and digestive system. If ALP levels are detected in the bloodstream and are above the reference range, it indicates liver disease or bone disorder.
Gamma-glutamyltransferase (GGT)
The gamma-glutamyltransferase (GGT) test is undertaken to measure the amount of the GGT enzyme in the blood. GGT's function in the body is to transport molecules and aid the metabolization of toxins and drugs within the liver. A high GGT reading can be due to liver damage or disease, these may include hepatitis or cirrhosis. Testing Gamma GT is also important for bile duct infection and monitoring alcohol abuse.
Albumin
Albumin is a protein present in blood plasma and plays a binding role like SHBG. Albumin is produced by the liver. Albumin will help to detect any issues in the functioning of the kidney or liver. It prevents the fluid in blood vessels from leaking out.
hs-CRP
To check inflammation levels, we conducted an advanced CRP evaluation. C-Reactive Protein (CRP) is a protein found in the blood which increases in response to inflammation. CRP is produced by the liver in response to inflammation. It is a biomarker of inflammation that is strongly associated with the risk of cardiovascular diseases, such as heart attack and stroke. High levels of CRP are found in people with chronic inflammatory diseases, such as rheumatoid arthritis, and in people who have had a recent heart attack or stroke. CRP is not a specific marker for any one disease, but it is a valuable indicator of inflammation.
Testosterone
Testosterone, also commonly called as the male hormone, is essentially found in males and in much smaller quantities in females. It plays an important role in the growth phase of the male body and is responsible for maturing of male reproductive organs, development of masculine features (facial hair etc.,), distribution of muscle mass and regulation of metabolism. In females, it influences distribution of muscle mass, fat and growth of red blood cells. Excess levels of testosterone is related to development of clots inside the body due to increased amounts of red blood cells. Reduced levels of testosterone can lead to loss of lean muscle mass, erectile dysfunction and low libido.
LDL Cholesterol
LDL or Low-density lipoprotein helps the body transport fat such as Triglycerides. However, LDL is often referred to as the 'bad' cholesterol because when your LDL levels are elevated, you face an increased risk of cardiovascular issues. These include heart attack and heart disease. This occurs as LDL can lead to fatty deposits accruing in the artery walls leading to atherosclerosis.
Non HDL Cholesterol
While we are individually measuring your HDL and LDL levels in this test, we will also carry out a non-HDL cholesterol check. This essentially includes all harmful cholesterol in your blood sample and is considered a primary indicator and risk assessment tool for cardiovascular health. Non-HDL levels should generally be below 4mmol/L. HDL and LDL levels can then be monitored to evaluate how any implementation of diet and lifestyle changes impacts your individual cholesterol levels, helping you to optimise your lifestyle based on your biomarkers.
Triglycerides
Triglycerides are a blood fat playing an essential part in the healthy function of your body. Triglycerides are the body's primary storage method for fat and can be used as an energy source. Triglycerides are created in the liver, and while they are essential for energy and fat storage, having elevated levels of triglycerides can lead to cardiovascular issues. Therefore it is crucial to monitor your triglycerides when checking overall cholesterol levels.
Iron
Iron is a mineral found within the blood, and is needed to help create haemoglobin which is a protein in the blood responsible for the transport of oxygen within the body's blood cells. If the body does not have enough haemoglobin, the muscles do not get enough oxygen and cannot work properly. It is important for people to have the correct amount of iron otherwise they will feel more tired and become Anaemic. The body's iron stores are sourced from one's diet and from the breakdown and turnover of red blood cells. When a test reveals low iron levels, a change in diet or added supplements can be used for treatment.
Biomarkers
Ferritin
Iron
Total Iron-Binding Capacity (TIBC)
Transferrin Saturation
Unsaturated iron-binding capacity (UIBC)
Free Thyroxine (FT4)
FT4 or free thyroxine is one of the two critical hormones produced by the thyroid gland. While it is produced in greater abundance as compared to FT3, it is thought of as a reservoir for FT3 whenever the body needs and this leads to the conversion of FT4 into FT3. Most of the thyroxine is not attached to a protein and the Menopause blood test helps to identify if there's a deficiency/excess of the hormone to detect thyroid-related ailments.
Vitamin D
Vitamin D is a vitamin that's essential for many functions in your body, including bone and muscle health. Vitamin D can be found in food, supplements, and fortified foods. If you don't get enough vitamin D, you may develop osteoporosis or muscle weakness. An average vitamin D level is 20 to 50 ng/mL. If you have a low vitamin D level, we may recommend that you take a vitamin D supplement or eat foods fortified with vitamin D.
Bilirubin
When red blood cells break down they produced a brownish-yellow pigment called Bilirubin. A build up of bilirubin within the bloodstream may be the cause of jaundice or liver disease.
Alanine transferase (ALT)
Alanine transferase (ALT) is an enzyme produced in the heart and liver cells. The testing of ALT will detect how much ALT is in the bloodstream but cannot show how much damage has been caused to the liver. The test is important to determine the health of the liver especially if drugs, heavy alcohol use or viruses (hepatitis) have been present. Lower ALT results have mostly indicated a healthy liver but healthy ALT ranges will depend on many factors, such as age and sex.
Total Protein
Total Protein measures the amount of two classes of proteins present in the blood: Albumin and Globulin. Albumin is mainly responsible for preventing the fluid in the bloodstream from leaking out. Whereas Globulin is produced by the liver as well as the immune system. The function of globulin is to strengthen the immune system by fighting germs as well as infections.
Aspartate Aminotransferase (AST)
An Aspartate Aminotransferase (AST) test is done to ensure an average amount of the enzyme is present within the blood. The enzyme is usually found within the liver, muscles and heart as well as other tissues around the body. When AST levels have increased it means there has been damage to the nearby tissues and cells. The AST is an enzyme that helps to trigger important chemical reactions within the body.
Creatine Kinase
Creatine Kinase is a component present in the muscles of your body. It is a type of protein. A high level of creatine kinase indicates that the muscles need repair and have been injured. Creatine Kinase also supports heart function and is impaired and can be an indication of a mild/ severe heart attack.
Why take the test?
The Weight Loss Blood Test is ideal for individuals that have lost a lot of weight or gained weight in a considerably short period of time. Weight Loss/ Gain can be a symptom of an underlying disease or disorder. It can be an indicator of vitamin deficiency, hormonal imbalance or improper functioning of the organs. This blood test will determine the levels of Vitamin D, Cortisol or stress hormone, inflammation in the body, thyroid hormones and liver as well as kidney functioning. Along with the report, we also provide our Certified Doctor's comments.
Have you been feeling any of these symptoms lately?
The Weight Loss Blood Test is suitable for the following individuals who are:
1. Unable to lose or gain weight
2. Experience frequent weight fluctuations
3. Feel fatigued or tired often
4. Experience mood changes or depression, anxiety









Experts Opinion on Weight Loss Home Tests
"Losing weight can often be difficult and these tests can identify triggers as to why weight loss might be a challenge for you. Looking at these triggers can also help instigate treatments which may assist you to lose appropriate weight and gain better energy. It’s important to note that if you have abnormal unexplained weight loss then it’s important to see a doctor as soon as possible."

How to take a Weight Loss 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
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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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Weight Loss Blood Test Information
Specification of Weight Loss Blood Test
- Test name: Weight Loss Blood Test
- Also known as & related tests: Weight loss testing
- Biomarkers:
- Test tube: SST + EDTA (Gold + Purple microtainer)
- Brand: Welzo
- Turn around time: Approx. 24 hours
- Lab test ranges:
- Test Kit Marking: MHRA/UKCA
- Location of Lab: United Kingdom
What is a Weight Loss Blood Test?
A Weight Loss Blood Test is a home health test offered by Welzo. The Weight Loss 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 Weight Loss Blood Test for?
A Weight Loss Blood Test tests for the following:
.What are the benefits of a Weight Loss Blood Test?
Checking your health through the use of Weight Loss 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 Weight Loss Blood Test?
Yes, Welzo offers a GP review service for the Weight Loss Blood Test. Follow the link if you would like to have an online GP appointment with your Weight Loss Blood Test.
Are Weight Loss Blood Tests available on the NHS?
The NHS offers Weight Loss Blood Tests subject to eligibility requirements, consultations and local guidelines.
Weight Loss Blood Test Kit and Ordering
How can a Weight Loss Blood Test be ordered?
A Weight Loss Blood Test can be ordered online through Welzo's secure checkout. Select the Weight Loss Blood Test and add the patient's name and details, then checkout for next-day delivery.
What is included in the Weight Loss Blood Test test kit?
The Weight Loss 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
- SST + EDTA (Gold + Purple microtainer)
Weight Loss Blood Test Biomarkers and Results
What biomarkers are tested for in a Weight Loss Blood Test?
The Weight Loss Blood Test checks for the following biomarkers:
What are the results ranges for a Weight Loss Blood Test?
Weight Loss 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 Weight Loss Blood Test.
What is a normal test range for Weight Loss Blood Test?
The Weight Loss 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.
Weight Loss Blood Test Procedure and Timing
When should a Weight Loss Blood Test be taken?
It is best to take a Weight Loss Blood Test first thing in the morning.
How long does a Weight Loss Blood Test take?
The typical turnaround for a Weight Loss 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 Weight Loss Blood Test (e.g., fasting)?
We will let you know via email if there are any special requirements for the Weight Loss Blood Test. However, typically we recommend you take a Weight Loss Blood Test first thing in the morning, fasted.
What is the best time to post my Weight Loss Blood Test?
The best time to return your Weight Loss 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 Weight Loss Blood Test?
The Weight Loss Blood Test requires a capillary blood sample using a SST + EDTA (Gold + Purple microtainer) that is collected from a finger-prick blood sample.

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