Tired All The Time
Expert blood collection,
available at home or in clinic
* Phlebotomist blood draw included
* UK accredited lab
* Results in days
Why take this test
- Feeling tired all the time without a clear cause
- Experiencing low energy or brain fog
- Struggling with focus or concentration
- Noticing changes in mood or wellbeing
- Wanting a more in-depth health check
What this test reveals
Blood Health
Full Blood Count (FBC) including red blood cells, haemoglobin, haematocrit, MCV and RDW
These markers assess how effectively your body is carrying oxygen. Low levels can lead to fatigue, weakness and breathlessness.
Iron Levels
Ferritin, Serum Iron, Transferrin, Total Iron Binding Capacity (TIBC), Transferrin Saturation
Iron deficiency is one of the most common causes of fatigue. These markers assess iron levels, storage and transport.
Vitamin Levels
Vitamin B12, Folate and Vitamin D
Deficiencies in these vitamins can affect energy, mood, concentration and overall wellbeing.
Thyroid Function
TSH, Free T3, Free T4, Thyroid Antibodies (TPO, TGA)
Thyroid hormones regulate metabolism and energy. Imbalances, including an underactive thyroid, can cause ongoing fatigue.
Blood Sugar Control
HbA1c, Insulin, C-Peptide
These markers assess how your body manages glucose. Poor blood sugar control can lead to energy crashes and fatigue.
Inflammation & Immune Response
HS-CRP and White Blood Cells
Inflammation can impact how your body uses nutrients and produces energy.
Kidney Function & Electrolytes
Urea, Creatinine, Cystatin-C, Sodium, Potassium, Chloride
These markers assess hydration, kidney health and internal balance.
Minerals & General Health
Magnesium, Calcium, Corrected Calcium, Albumin, ALP
These support energy production, muscle function and overall metabolic balance.
Identify the cause of fatigue, low energy and brain fog
Feeling tired all the time with no clear reason?
If you’re experiencing:
- Constant fatigue or low energy
- Brain fog or poor concentration
- Low mood or lack of motivation
- Dizziness or weakness
- Hair thinning or poor recovery
There may be an underlying cause affecting how your body functions.
Find out what’s really causing your fatigue
Feeling tired all the time is not something you should ignore. Fatigue can be linked to a range of factors including iron deficiency, vitamin imbalances, thyroid issues, blood sugar changes or low-grade inflammation.
This test looks at all of these areas in detail, giving you a clear picture of your health so you can understand what is impacting your energy levels.
How this test helps
Instead of guessing, this test gives you clear, measurable data so you can:
- Identify the root cause of fatigue
- Detect vitamin or mineral deficiencies
- Assess thyroid function and metabolism
- Understand blood sugar balance
- Take the right steps to improve energy levels
Take control of your energy
Fatigue is often a sign that something is out of balance. Understanding what is happening inside your body allows you to take targeted action.
Get your Tired All The Time Blood Test today
Simple, fast and reliable
- Venous blood sample collection
- Results available within 1–2 days after the sample reaches the laboratory
- Accurate laboratory analysis
- Clear, easy-to-understand results
Don’t ignore ongoing fatigue
If you are feeling tired all the time, there may be an underlying reason.
Identify it early and take the right steps to improve your energy and wellbeing.
A Professional Comes to You
Once you order your test and book your appointment, a qualified professional can visit your home or workplace, or you can choose to visit a clinic to take your blood sample safely and comfortably.
- No self Testing
- Accredited UK lab
Testing for Tiredness
✅ Over 2,000 tests completed across the UK
✅ Trusted by patients, athletes, and health-conscious professionals
✅ NHS-comparable testing standards
✅ 100% secure and confidential
How often should I have a Tired All The Time Blood Test
We recommend checking your ….
Nurse appointments fill up fast — book now to secure your preferred date.
Our Nurses visit your Home or Work to take your blood.
Pick a time and date to suit you.
Your results are available online within days of your blood being taken.
Other Questions
- Feeling tired all the time without a clear cause
- Experiencing low energy or brain fog
- Struggling with focus or concentration
- Noticing changes in mood or wellbeing
- Wanting a more in-depth health check
This blood test is to check on:
- a range of factors including iron deficiency, vitamin imbalances, thyroid issues, blood sugar changes or low-grade inflammation.
For best results (if medically suitable) it is advisable to fast (water is allowed) 12 hours prior to the test.
Collection method: Venous blood
Results available: 1-2 days after the sample has reached the laboratory.
Full Blood Count (FBC)
Measures red and white blood cells and platelets to assess overall health.
- Red Blood Cells (RBC): Carry oxygen around the body. Low levels may indicate anaemia.
- Haemoglobin (Hb): Essential for oxygen transport. Low levels can cause fatigue.
- Haematocrit (HCT): Indicates the proportion of red blood cells in your blood.
- White Blood Cells (WBC): Reflect immune response and inflammation.
- Platelets (PLT): Support blood clotting.
- MCV, MCH, MCHC: Help identify different types of anaemia.
- RDW: Shows variation in red blood cell size.
- White Cell Subtypes: Help identify infection or inflammation.
Kidney & Electrolytes
- Urea and Creatinine: Assess kidney function and protein metabolism.
- Cystatin-C: Provides a more sensitive measure of kidney filtration.
- Sodium, Potassium, Chloride: Maintain fluid balance and support nerve and muscle function.
Thyroid Markers
- TSH: Indicates how well your thyroid is functioning.
- Free T3 and Free T4: Measure active thyroid hormones.
- Thyroid Antibodies (TPO, TGA): Detect autoimmune thyroid conditions.
Iron Markers
- Ferritin: Indicates stored iron levels.
- Serum Iron: Measures circulating iron.
- Transferrin and TIBC: Assess iron transport.
- Transferrin Saturation: Shows how much iron is available.
Blood Sugar
- HbA1c: Reflects average blood sugar levels over time.
- Insulin: Shows how your body regulates glucose.
- C-Peptide: Indicates insulin production.
Vitamins
- Vitamin B12: Supports energy, brain function and red blood cell production.
- Folate: Essential for cell health and energy levels.
- Vitamin D: Supports energy, mood and overall health.
Minerals
- Calcium and Corrected Calcium: Support bone health and metabolic function.
- Magnesium: Important for energy production, muscle function and sleep quality.
- Albumin: Helps transport nutrients and maintain fluid balance.
- ALP: Enzyme linked to liver and bone health.
Inflammation Marker
HS-CRP: Identifies low-grade inflammation that may affect energy levels.
How it Works
Read about Fingerprick VS Venous blood sample 
1. Order a Test
Order your test, and then Answer the Questions about why you’re taking that test.
Our nurse will contact you for dates, so they can take your blood sample at your home.
Our nurse will then send your sample to our laboratory.
2. Our laboratory team run the tests
Our skilled laboratory staff conduct your blood tests in a clean and secure environment, ensuring accuracy and reliability.
Each test follows strict protocols to maintain the highest quality standards.
3. Receive Your Results within 7 days
We will email you to inform you that your blood test results are ready.
The email will have a PDF report attached, sent directly to your inbox.
4. Monitor your levels over time
With regular ongoing tests and reports, you can track your results. The reports can be shared with your GP.
Check if you’re improving healthily or where changes could be made.
