Blood test for energy levels
Because your health matters.
Feeling constantly tired or low on energy can sometimes be linked to underlying health factors. Our energy-related blood tests look at a range of common contributors to fatigue, including thyroid function, iron and protein levels, diabetes risk, cholesterol and more. These markers play a key role in supporting everyday energy, and understanding them can help you take informed steps to improve your wellbeing.
This quick and convenient health check is suitable for adults aged 18-79 who want to explore potential medical causes of ongoing tiredness. Your blood sample is taken by a Health Assessment Specialist and processed in our leading UK laboratories. Once your results are ready, you’ll receive a clear, jargon-free Results Report explaining each marker in detail.
If you’re also interested in whether low nutrient levels - such as vitamin B12, folate, vitamin D, magnesium or zinc - could be contributing to fatigue or affecting cognition, you may want to explore our Core Vitamins or Advanced Nutrients and Vitamins Profile tests. These tests provide deeper insights into your nutritional status and can be booked on their own or added to any health check.
USPs
1.
Fast, accurate results
2.
Competitively priced testing within 20 minutes of your home
3.
Detailed, personalised Results Report
4.
Access to our 24/7 GP service with all test packages
How it works
1. Select and book your package
View our health test packages and book a full body private health check. All our individual tests can be added to any of our private health check packages. . Just call our team on 0800 652 2183 before your appointment to add an extra test.
2. Make an appointment
Choose the venue, date and time that suits you. With over 2000 appointments available nationwide every week, you're sure to find a convenient time, date and venue.
3. Attend your appointment
A trained health assessment specialists will carry out your blood test. The whole process only takes around 20 - 30 minutes.
4. Fast, accurate results
Your results will be available 24/7 through our online dashboard, My Wellness. You will receive an email notification as soon as your results are ready for viewing. Processing times vary by test, with some results accessible on the dashboard in as little as three days. The online dashboard also provides easy access to a downloadable PDF, making it simple to share your results with your GP.
What is a vitamins and minerals health check?
A vitamins and minerals health check is a targeted package of blood tests designed to help you understand whether nutritional imbalances may be contributing to symptoms such as unexplained or persistent fatigue. These tests assess key nutrients that play a central role in how your body produces energy, supports immunity, maintains brain function and regulates metabolism.
Our bodies rely on the right balance of vitamins, minerals and other key biomarkers to function effectively. When levels fall outside the normal range, it can affect everything from energy levels and concentration to mood, muscle strength and overall wellbeing. A nutrient-led assessment provides valuable insights into whether low or borderline levels may be behind the tiredness that’s stopping you from feeling your best.
At Bluecrest Wellness, our Core Vitamins or Advanced Nutrients and Vitamins Profile tests focus on essential nutrients linked to energy, blood health and cognitive function. Depending on the package you choose, your profile may include:
-
Vitamin D
-
Ferritin (iron stores)
-
Folate
-
Vitamin B12
-
Active Vitamin B12
-
Zinc
-
Magnesium
These markers are closely associated with common causes of low energy, reduced stamina and ongoing fatigue.
Following your appointment, you’ll receive a comprehensive personal Results Report explaining each reading in clear, jargon-free language. Every result is given a green, amber or red flag, making it easy to identify any areas that may need further attention and whether follow-up with your GP or simple lifestyle adjustments may be helpful.
Why should you have a private vitamins and minerals health check?
A private vitamins and minerals health check is ideal for adults aged 18-79 who are experiencing unexplained or persistent fatigue and want to understand whether nutritional imbalances could be a contributing factor.
These tests focus on key nutrients that play a vital role in energy production, blood health, brain function and overall wellbeing. Low or borderline levels of certain vitamins and minerals can leave you feeling constantly tired, affecting your daily life and productivity.
What does a private vitamins and minerals health check involve?
A private Vitamin & Mineral profile involves having a series of blood tests and a body composition scan to help evaluate if there is an underlying cause of your decreased energy levels.
A Health Assessment Specialist will take a blood sample from a vein in your arm using a small needle. Once the needle is inserted, a small amount of blood is collected into various test tubes, which are then sent to a lab for testing. The whole process typically takes less than five minutes.
In addition, they will also perform a body composition scan to provide insights into your muscle mass, visceral fat, body water, and more. This involves sending a painless electrical signal through your body via pressure-contact electrodes. This procedure is safe, non-invasive, and only takes 5-10 minutes.
Private Health Checks for complete peace of mind
Our full body private health checks are designed for busy people who want to take control of their health. Our tests are quick, accurate, convenient, and completely stress-free. No waiting for an appointment, safe clinical procedures, no embarrassing questions, no long travel times, and no busy waiting rooms.
Our tests are conducted by trained health assessment specialists at over 350 venues across the UK and Ireland, ensuring accurate professional health checks within 20 minutes of your home.
Any individual tests can be added to any full body health check. Just book one of our full body private health assessments and call us before your appointment to add an extra test.
Need help? Call free on 0800 652 2183 to speak to one of our team.
FAQs
A vitamins and minerals health check provides insights into your nutritional status and overall wellbeing. It can help identify whether low or imbalanced levels of key nutrients - including vitamin D, B12, folate, iron, magnesium and zinc - may be contributing to symptoms like persistent fatigue, low energy, reduced concentration or slower recovery. The results give you a clear picture of your nutrient levels and guidance on next steps, whether that’s lifestyle adjustments, dietary changes, or discussing follow-up with your GP.
Yes, you can book a Core Vitamins or Advanced Nutrients and Vitamins Profile as a standalone test, or add it to any of our other health checks. While individual nutrient tests are available, the full profile is designed to give a broader picture of your nutritional status, which can be more effective and cost-efficient if you want to understand all the key factors affecting your energy, immunity and overall wellbeing.
Full preparation instructions will be provided in writing when you book your appointment, including any information about whether you need to fast before your test. It is important that you stay hydrated and drink enough water prior to the test.
While home testing kits are available, they often provide only a limited snapshot. At Bluecrest Wellness, you can book a convenient test at one of our high-quality clinics across the UK and Ireland. Our appointments provide a comprehensive assessment with accurate lab analysis, giving you the most reliable results.
Bluecrest Wellness offers two options:
Core Vitamins Profile
-
Vitamin D (25-OH)
-
Ferritin (iron stores)
-
Folate
-
Vitamin B12
Advanced Nutrients & Vitamins Profile
Includes everything in the Core test, plus:
-
Zinc
-
Magnesium
These nutrients are linked to energy levels, brain function, muscle health, hormone balance and immune support. After your appointment, you’ll receive a detailed Results Report with green, amber or red flags for each test, along with clear guidance on any follow-up steps.
Your test results and other readings will each be given a ‘flag’ of a different colour: green, amber or red. Green results are within the recommended range for your age and sex; amber results are slightly outside what we'd normally expect; and red results are further outside the norm.
Where a result is amber or red, we'll give follow-up advice on what to do next - whether that's making lifestyle changes, simply monitoring the result, or visiting your doctor for further investigation.
If there are any critical results discovered by our laboratory, we will contact you immediately, so you won’t need to wait for your full Results Report to arrive to take appropriate action.
