Omega-3/Omega-6 Fatty Acid Test


All tests from Nutrition with Judy include a detailed analysis (notes) that include Nutrition with Judy explanations, dietary and supplement recommendations, as well as customized next steps based on your test results. 

The outer layer of every single cell in the body is made up of fats. 

You can find out what fats make up your cells with the Omega-3 Index Complete test. Diet is not the only thing that determines your blood fatty acid levels – metabolism, genetics, gender, weight, age and other lifestyle factors all can play a role.

Learn more about your cells with the Omega-3 Index Complete Test

This test measures:

  • Omega-3 Index
  • Omega-6:Omega-3 Ratio
  • AA:EPA Ratio
  • Trans Fat Index
  • Individual fatty acid levels

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All tests from Nutrition with Judy include a detailed analysis (notes) that include Nutrition with Judy explanations, dietary and supplement recommendations, as well as customized next steps based on your test results.

Optimize Your Fatty Acid Status in 3 Easy Steps

All you need to do to raise your Omega-3 Index is modify your diet to include more EPA and DHA, whether from fatty fish like salmon or omega-3 supplements. The actual amount you would need to take in order to raise your Omega-3 Index into the target range (>8%) depends in part on the starting level, but it cannot be predicted with certainty.

  1. Measure – You won’t know if your fatty acid status just by tracking your diet — it must be measured.
  2. Modify – Once you know your status, it can be optimized with simple dietary changes.
  3. Monitor – Testing your fatty acid every 4 months will ensure that your levels stay optimal.


Omega-3 Index

The Omega-3 Index test measures the amount of EPA and DHA in your blood, specifically the red blood cell membrane. Membranes, or cell walls, are made of different kinds of fats called fatty acids. We have found that having a higher proportion of EPA and DHA in the membrane tracks with how much omega-3 is in your diet and is a marker of better health. Raising your Omega-3 Index to the desirable zone of 8% will help ensure you are getting enough of the right omega-3s — EPA and DHA — to protect your health.

Omega-6:Omega-3 Ratio 

The Omega-6/Omega-3 ratio (also written “n-6/n-3”) analyzes 7 omega-6 fatty acids and 4 omega-3 fatty acids. The total amount of omega-6s and omega-3s are divided by each other to get a ratio. We recommend a ratio of 3-5:1 (omega-6:omega-3).

AA:EPA Ratio

The AA/EPA ratio is your level of arachidonic acid (AA), an omega-6 fatty acid, vs. eicosapentaenoic acid (EPA), an omega-3 fatty acid. These are important fatty acids in metabolism because powerful signaling molecules can be made from them. These molecules can affect anything from blood clotting to birth contractions to inflammatory responses. Having different levels of these two fatty acids could affect processes that ultimately impact inflammation and overall health.

Trans Fat Index

Eating foods with trans fats made from hydrogenated oils increases the risk for heart attacks. For years, trans fats were used to make all kinds of processed foods. But because of their effect on heart health, trans fats were deemed unsafe for human consumption and are being removed from food supply chains all over the world, including the US. However, other kinds of trans fats occur naturally at fairly low levels in meat and milk products, and they seem to have health benefits. The Trans Fat Index measures the trans fats from industrial production and should be below 1%.

Individual Fatty Acid Level

We measure 24 individual fatty acid levels in your blood to calculate the Omega-3 Index, Ratios and Trans Fat Index. But there is so much more to learn from knowing individual levels of fatty acids, like EPA and DHA levels, the specific omega-6 fatty acids that make up half the Ratios, and more. While there is not yet agreement in the scientific community on what many fatty acid levels “mean” for health, these values provide interesting insights into your diet and health.


  1. Order: Choose the test service you would like. The sample collection kit typically arrives in 3 to 5 days.
  2. Collect Sample: Follow the simple kit instructions to collect your sample from the comfort of home. Once you collect your sample, mail it back to our lab with the pre-paid envelope.
  3. Get Results: In 2-4 weeks you will receive an email letting you know your personalized results are ready.


This lab report also includes Nutrition with Judy custom notes for actionable next steps and a diet/supplement protocol to improve your test results. 

  • Actionable: Fatty acid levels start changing as soon as you change your diet and lifestyle and stabilize in 3-4 months.
  • Personalized: Personalized recommendations based off your test results.
  • Certified: All samples are processed in a central CLIA-certified laboratory.
  • Validated: The same validated and standardized sample processing methodology used in over 200 research studies.
  • Compare: Reference ranges show you how you compare to your peers.


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