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Omega 3 and 6 (Essential Fatty Acids) Blood Test

Omega 3 and 6 (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 Results estimated in 10 working days from sample receipt at lab
Omega 3 and 6 (Essential Fatty Acids) Blood Test
Omega 3 and 6 (Essential Fatty Acids) Blood Test
Omega 3 and 6 (Essential Fatty Acids) Blood Test
Omega 3 and 6 (Essential Fatty Acids) Blood Test
Omega 3 and 6 (Essential Fatty Acids) Blood Test

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.

From the expert

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
Chief Medical Officer

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

Laboratories you can trust

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

Dr Sam Rodgers - Chief Medical Officer

Expert advice with your results

Get trusted advice and comments from one of our doctors based on your results.

Your personal 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

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.


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.