• General Health
  • Vitamins & Minerals

Advanced Tiredness and Fatigue Blood Test

A tiredness and fatigue blood test looking at iron, vitamins, thyroid, blood sugar and blood count, areas often linked to low energy. It suits anyone feeling drained for weeks.

What this test is for

The Advanced Tiredness and Fatigue Blood Test looks at the areas most often linked to low energy. It includes a full blood count (red cells, white cells and haemoglobin), plus iron with ferritin, vitamin D, active B12, folate, thyroid function (TSH and free T4), HbA1c for average blood sugar, and hs-CRP for inflammation.

It suits people who have felt run down for a few weeks, new parents, shift workers and those on plant based diets. It focuses on energy, so it leaves out the cholesterol, liver and kidney tests in our Advanced Essential Blood Test.

You will see each marker next to its reference range. A result outside the range can point to a change in diet, a repeat test, or a conversation with your GP. If tiredness is severe or sudden, see your GP rather than waiting for a test.

26Biomarkers
24–48hResults
  • 24–48h turnaround
  • Free return postage
  • NHS-standard laboratory

Book at our clinic

£167

One-off purchase · no subscriptionBase £147 + £20 collection

How would you like to take your sample?

You will confirm two statements, then continue to secure payment. A discount code can be entered before you pay.

Secure Stripe checkout · £167.00

Before you pay

Please confirm these statements

Both are required. We keep a record of them, with the date and time, on your order.

Read the Privacy Policy and Terms of Use. A copy of the terms is emailed to you with your order.

  • Free tracked delivery
  • Free return postage included
  • Results in 24–48h
  • Digital results with explanation

Your results are reviewed by our clinical team and delivered securely. All tests use NHS-standard laboratories.

Biomarkers included

26 markers measured

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