Support Healthy Weight, Metabolism & Blood Sugar
Maintaining a healthy weight depends on far more than calories. Hormones, blood sugar control, nutrient levels and metabolic function all play a major role in how your body stores fat, burns energy and responds to diet or exercise. Our metabolism blood tests, blood sugar tests, and weight loss blood test options help you uncover the underlying factors affecting your weight, cravings, energy and metabolic health. Whether you’re struggling with insulin resistance, hormonal imbalances, slow metabolism or are beginning GLP-1 medications, these tests give you clear, personalised insights to optimise your results safely. If you’re starting or currently using Ozempic, Wegovy or Mounjaro, read our guide on important tests to get before and during GLP-1 treatment.
How i-screen works
01Order online
Choose your preferred blood test and place your order securely through our website.
02Receive pathology request form
We'll email you your pathology request form, which you'll need for your blood draw.
03Book an appointment
Book an appointment for your blood draw at a convenient time and location.
04Get your results
Your results land in your secure dashboard with plain-English explanations from our health team, typically within 2–3 weeks.
Want the most comprehensive test for metabolism, weight control & blood sugar?
If you want the fullest picture of your metabolic health, these complete metabolism panels assess hormones, insulin, glucose tolerance, nutrients, inflammation and energy production. They provide the most advanced insight into the biological drivers behind weight gain, slow metabolism and fatigue.
Complete pathology panel required for the Metabolic Balance personalised nutrition analysis. Metabolic Balance matches your personal “body chemistry” to your ideal “food chemistry”.
Complete pathology panel required for the Metabolic Balance personalised nutrition analysis. Metabolic Balance matches your personal “body chemistry” to your ideal “food chemistry”. This panel also includes vitamin D, HbA1c and Insulin.
Complete pathology panel required for the Metabolic Balance personalised nutrition analysis. Metabolic Balance matches your personal “body chemistry” to your ideal “food chemistry”. This panel also includes vitamin D and HbA1c.
Complete pathology panel required for the Metabolic Balance personalised nutrition analysis. Metabolic Balance matches your personal “body chemistry” to your ideal “food chemistry”. This panel also includes vitamin D.
Is insulin resistance making weight loss harder?
Insulin resistance is one of the most common, and overlooked, causes of weight gain, cravings, fatigue and difficulty losing weight. These tests measure glucose control, fasting insulin and long-term blood sugar patterns.
Insulin resistance can lead to difficulty losing weight, distinct abdominal fat, fatigue, bloating and sugar cravings. Identifying insulin resistance early and committing to lifestyle changes can ultimately help the progression to diabetes.
Type 2 diabetes is the fastest growing chronic condition in the UK but it is a preventable disease and easy to predict. This simple diabetes test highlights whether your lifestyle or physiology put you at risk.
Are your hormones influencing weight changes?
Hormonal imbalances can affect appetite, metabolism, fat storage and energy levels. These tests assess key hormones linked to weight management including thyroid hormones, cortisol and leptin. An underactive thyroid is one of the most common causes of unexplained weight gain — read 8 signs your thyroid may be the problem. If you suspect a broader hormone imbalance, our guide to recognising the signs of hormone imbalance can help you understand where to start.
1 in 7 individuals live with a thyroid condition with symptoms ranging from low energy and depression to unexplained weight gain and insomnia. If you don’t feel right but you can’t put your finger on why, this simple thyroid test can tell you if it's your thyroid.
If you’re looking for a comprehensive assessment of your thyroid function, including an investigation of an underlying autoimmune disorder, then this combined thyroid antibodies test and thyroid function test is the blood test for you.
The Cortisol Awakening Response saliva test provides information about the body's natural cortisol rhythms and response to stress, which may be useful in understanding various physical and mental health conditions.
The Advanced Dried Urine Hormone Test (ENDOMap) - is a complete analysis of your hormones using dried urine.
Hormones exert powerful effects on the female body and have a significant role to play in the body's health and wellbeing. Understanding these roles is important if you’re seeking to proactively manage your health.
A comprehensive analysis of the hormones that govern masculinity which includes a male fertility test. This simple blood test can tell you if you have a hormone imbalance.
Is nutrient deficiency slowing your metabolism?
Low levels of B vitamins, iron, vitamin D and essential micronutrients can reduce metabolic rate and impair weight loss. These tests reveal deficiencies that may be impacting energy production and fat metabolism.
Many nutrients are absolutely essential for good health. It's possible to get most of them from a balanced, real food-based diet, however the typical modern diet lacks several very important nutrients. Find out your nutritional status with this simple nutrition blood test.
Iron deficiency is the most common nutritional problem in the UK. A shortage of iron leads to anaemia and feelings of weakness, tiredness and dizziness.
Vitamin B12 is an essential vitamin that helps maintain healthy nerves and red blood cells and is also needed to make DNA. This simple vitamin B12 blood test will tell you if you have a deficiency.
This dried blood spot test includes 26 essential and non essential amino acids. Testing amino acids helps assess nutritional status, metabolic function, and potential deficiencies or imbalances that may impact energy, mood, detoxification, and overall health. It can also reveal issues with protein digestion, absorption, or genetic metabolic pathways.