Energy blood test

Checks vitamin D, active B12, folate, a full iron profile, HbA1c and testosterone, markers commonly linked to low energy and fatigue.

At-home test
Doctor reviewed
Subscription available

Sample: Blood
Collection: At-home finger-prick or nurse-taken venous sample (£60 extra)
Results in: 2 days
Biomarkers: 10
Doctor reviewed: Yes

Tests for

Active B12
Folate
HbA1c
Testosterone
Total Iron-Binding Capacity (TIBC)
Unsaturated Iron-Binding Capacity (UIBC)
Ferritin
Iron
Transferrin saturation
Vitamin D

Compare Health Test Score Ten-marker panel targeting the usual causes of low energy

£117.00

Buy now — £117.00

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Test specifications

Provider: Thriva
Sample type: blood
Collection method: at-home finger-prick or nurse-taken venous sample (£60 extra)
Turnaround time: 2 days
Biomarkers tested: 10
At-home test: Yes
Doctor reviewed: Yes
Gender focus: Both

What's tested

10 biomarkers as listed by Thriva.

B Vitamins Profile

Active B12
Folate

Diabetes

HbA1c

Hormones

Testosterone

Iron Deficiency

Total Iron-Binding Capacity (TIBC)
Unsaturated Iron-Binding Capacity (UIBC)

Iron status

Ferritin
Iron
Transferrin saturation

Vitamins

Vitamin D

About this test

This test covers 10 markers connected to energy levels: vitamin D, active B12 and folate (both involved in red blood cell production), a four-part iron profile, HbA1c (average blood glucose) and testosterone. These are commonly used to assess some of the more common contributors to persistent tiredness, such as low iron stores, vitamin deficiencies or blood sugar imbalances.

There are no directly comparable peer tests logged in the same group for this one, so it cannot be measured against specific competitors here. On breadth, 10 markers places it in the 72nd percentile of the energy and fatigue tests we track more broadly, and at £117.00 it sits a little above the wider median of £99.00 for similarly sized energy tests.

It scores well for collection convenience, since you can test at home or add a nurse visit with results in around two days, and for trust signals, based on Thriva's Trustpilot rating, lab accreditation, CQC registration and doctor review as standard. Results and follow-up also score well because a doctor reviews your results as part of the report.

Who is it for?

This suits you if you have ongoing tiredness and want to check several common causes at once, such as low iron, vitamin D or B12 levels, an underlying blood sugar issue, or low testosterone, in a single sample.

There is no closely comparable named test in our data to weigh this one against on price or depth, so judge it mainly on how much you want to test in one go. If your fatigue could also be linked to your thyroid, note that this panel does not include thyroid markers, and Thriva's own thyroid test may be worth considering alongside it.

How it works

This is a blood test. You can collect your own sample at home using a finger-prick kit, or pay an extra £60 for a nurse to take a venous sample. Once your sample reaches the lab, results are typically ready within 2 days, and a doctor reviews them before they are sent to you as part of your report.

Pros & cons

Pros

Covers 10 markers across vitamins, iron status, blood sugar and testosterone in one sample.
Includes a full four-part iron profile rather than just ferritin.
Results are typically back within 2 days.
A doctor reviews your results before they reach you.

Cons

At £117.00, it costs more than the £99 median for similarly sized energy tests we track.
Does not include thyroid markers, a common cause of fatigue.
No closely comparable named test in our data to check its value against directly.

Our editorial score

Compare Health Test Score Ten-marker panel targeting the usual causes of low energy

Editorial confidence: 10.0/10

This test brings together 10 markers often linked to fatigue: vitamin D, active B12, folate, iron status, HbA1c and testosterone. At £117.00, there is no directly comparable Thriva-tracked test to weigh it against, so value is best judged by the size of the panel itself. The biggest caveat is that fatigue has many possible causes, and this panel does not cover all of them, such as thyroid function.

Score breakdown

Clarity and documentation 9.0/10

The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.
Clinical depth 8.8/10

10 biomarkers, placing it in the 72nd percentile of energy fatigue tests we track.
Collection convenience 9.0/10

A finger-prick sample you take at home; with a venous or clinic option as well; a home nurse visit is offered; results in around 2 days, in line with or faster than similar tests.
Results and follow-up 7.0/10

Results are reviewed by a doctor; the provider does not describe the report format.
Trust signals 10.0/10

Trustpilot 4.6 from 3,195 reviews; accredited lab (UKAS ISO 15189 / ISO 17025 partner labs); CQC registered; doctor review as standard; trading 11+ years.
Value for money 5.6/10

£117.00 against a median of £99.00 for the 9 similarly sized energy fatigue tests we track (+18%).

Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.

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