Omega-3 and 6 blood test

A two-marker test measuring omega-3 index and the omega-6 to omega-3 ratio, for checking whether your fatty acid balance supports heart, brain and eye health.

  • At-home test
  • Doctor reviewed
  • Subscription available
Sample
Blood
Collection
At-home finger-prick or nurse-taken venous sample (£60 extra)
Results in
10 days
Biomarkers
2
Doctor reviewed
Yes
Tests for
  • Omega 3 index
  • Omega-6:omega-3 (AA:EPA) ratio

Test specifications

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

What's tested

2 biomarkers as listed by Thriva.

Omega fatty acids

  • Omega 3 index

Omega-3 and Omega-6

  • Omega-6:omega-3 (AA:EPA) ratio

About this test

This test measures two markers: the omega-3 index, and the ratio of omega-6 to omega-3 fatty acids (AA:EPA). Omega-3 and omega-6 are fatty acids the body cannot make on its own, and are linked to heart, brain and eye health. The test is aimed at people who want to check whether diet or supplementation is giving them an adequate balance of these fats.

The provider does not publish a comparison group for this test. Against the wider set of vitamins and minerals tests we track, its 2 markers place it at the 64th percentile for depth, a narrow panel by design since it targets only fatty acid status. Its £133 price is well above the £85 median for similarly sized panels, about 56% higher.

It scores poorly on value for money given that gap. Results and follow-up are reviewed by a doctor, though the 10-day turnaround is longer than many blood tests, which factors into a lower score there. Collection convenience remains high, with both at-home and nurse-visit options.

Who is it for?

This suits someone who wants to check specifically their omega-3 and omega-6 status, for example if they take fish oil supplements or follow a diet low in oily fish, rather than someone wanting a broader nutrient check. The provider does not list directly competing tests in our data, so weigh the £133 price and narrow scope against your own priorities before choosing it over a broader vitamins panel.

How it works

You take this test at home with a finger-prick sample, or add a nurse-taken venous draw for £60. Omega-3 and omega-6 analysis takes longer than most markers, so results take around 10 working days, and a doctor reviews them before you see your report.

Pros & cons

Pros

  • Focused check of fatty acid balance via the omega-3 index and omega-6:omega-3 ratio
  • Doctor-reviewed results with lifestyle guidance included
  • At-home finger-prick collection, with a nurse visit option

Cons

  • £133 for just 2 markers, about 56% above the median for similarly sized vitamin tests
  • Results take around 10 working days, longer than many blood tests
  • Provider does not publish a comparison group for direct peer comparison

Our editorial score

Compare Health Test Score Narrow panel, priced high against similar vitamin tests
Editorial confidence: 10.0/10

This test measures just two markers, the omega-3 index and the omega-6:omega-3 ratio, at £133. That is about 56% above the £85 median for similarly sized vitamin and mineral tests we track, a lot to pay for a narrow panel, and results take around 10 working days to come back.

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 8.3/10

    2 biomarkers, placing it in the 64th percentile of vitamins tests we track.

  • Collection convenience 8.0/10

    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 10 days, slower 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 3.7/10

    £133.00 against a median of £85.00 for the 83 similarly sized vitamins tests we track (+56%).

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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