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Omega 3 and 6 Check (Essential Fatty Acids) Blood Test
Omega 3 and 6 Check (Essential Fatty Acids) Blood Test
Omega 3 and 6 Check (Essential Fatty Acids) Blood Test
Omega 3 and 6 Check (Essential Fatty Acids) Blood Test

Omega 3 and 6 Check (Essential Fatty Acids) Blood Test

Omega-3 and omega-6 fatty acids are important in the normal functioning of all tissues of the body. This test checks the ratio of omega-3 to omega-6 essential fatty acids in the blood.
Blood sample 1 biomarker included 10 working days turnaround

What's included?

Biomarker profile

  • Cholesterol Status

Cholesterol Status (1 Biomarker)

Special instructions

Do not eat for 12 hours prior to your test. Drink plenty of water, if you take medication then you are allowed to take it as you would normally. Do not take Omega 3 supplements for 24 hours prior to your test.
The human body can produce all the fatty acids it needs, except for two: linoleic acid, an omega-6 fatty acid and alpha-linolenic acid, an omega-3 fatty acid. These are essential fatty acids and must be consumed from the diet. Fats are required in every cell of our bodies and are vital for regulating blood pressure, strengthening our immune system and keeping our brains healthy. Whilst omega-6 can be found in most vegetable oils, poultry, leafy green vegetables and nuts; omega-3 is in a smaller number of foods such as oily fish, seeds and nuts.

The ratio of omega-6 to omega-3 in our bodies is very important. Omega-6 fatty acids have a pro-inflammatory role while omega-3 fatty acids have an anti-inflammatory role. Although inflammation helps the immune system to fight infection, chronic inflammation in the body can lead to the development of disease, including heart disease and autoimmune diseases.

As human diets have moved from that of hunter gatherer to the modern agricultural era, the amount of omega 6 fatty acids we consume has increased dramatically such that we now consume more than 10 times the amount of omega 6 as omega 3. The resulting modern ratio of around 16:1 is believed to be responsible for a number of inflammatory diseases such as heart disease and type 2 diabetes. An ideal ratio is about 2:1 and this is normally achievable by changes in diet and supplementation of omega 3 rich fish oils or algae. This test checks the ratio of omega 6 to 3 and highlights any irregular levels.

Dr Sam Rodgers MBBS, MRCGP

Why take this test?

  • You want to know your omega 6 to omega 3 ratio
  • You want to check that your diet is providing you with the nutrients you need
  • You are looking to monitor type 2 diabetes or cardiovascular disease

How it works

  • Take the test

    Collect your sample at home, visit a partner clinic, or we can even send a nurse to you.
  • Post your sample

    Send your sample back on the same day you take it in the freepost pack to our laboratory.
  • Get your results

    View your results with doctor's advice on your personal dashboard.
Laboratories you can trust

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our fully accredited partner laboratories.

Expert interpretation <br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team is on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

What our customers say

We ask every Medichecks customer about their experience - read what they have to say


Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.