Do You Know Your Omega-3 Index?Check Now

Just as with vitamin D deficiency, omega-3 deficiency can put you at risk for chronic disease. Both are essential to your everyday health.

You may already have an idea of how your vitamin D level may affect your health…
How could your Omega-3 Index level affect your health as well?

O3 diseases

Omega-3 Deficiency is Common Around the World

The typical diet for most individuals, up to 80-90% in some countries, does not provide enough EPA and DHA to provide these benefits, leaving a majority of the population deficient – with most countries and regions around the globe having Omega-3 Index levels that are considered low to very low.

O3 deficiency map

Learn More about the Benefits of Omega-3s


The Importance of Testing Omega-3s (just as with vitamin D!)

By taking simple dietary steps like increasing your consumption of foods or supplements rich in the omega-3 fatty acids EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), your Omega-3 Index will rise.  However, similar to vitamin D serum level response to supplementation, there is a wide variation in response between omega-3 intake and a resulting Omega-3 Index level; there is no way to tell if you are getting enough omega-3s unless you test your levels.

The chart below shows the variability in Omega-3 Index response to a daily dose of EPA and DHA over a course of approximately 5 months. Observe, for example, the wide range of response, from about 0% change to about 5% increase, at a daily dose of 600 mg/day.

O3 index response to dose

What Does the Omega-3 Index Test Measure?

The Omega-3 Index is a blood test that measures the amount of omega-3 fatty acids (EPA and DHA) in red blood cell (RBC) membranes, and is expressed as a percent of total RBC fatty acids. It is a long-term and stable marker of omega-3 status, and it reflects tissue levels of EPA+DHA.

O3 index definition diagram

The Omega-3 Index test can give you an unbiased view of your dietary intake of omega-3s, and, since the amount of omega-3s in your red blood cell membranes is a direct reflection of the amount of omega-3s in your tissues and organs, it is also a measure of heart disease risk.  An Omega-3 Index over 8% is associated with the lowest risk of death from heart disease and below 4% with the highest.

What is Your Omega-3 Index?  Find out by enrolling in the D*action+Omega-3 Project today…


How the D*action+Omega-3 Project Works

test kit transparentIn the privacy of your home you can now check your vitamin D and Omega-3 Index levels together with our easy-to-use test kit. You simply provide two blood samples, mail them to GrassrootsHealth, and 7-10 days after receipt back at the office with a completed online questionnaire, your levels will be available to you online.

The process is very similar to that of our current D*action project, however, registration, log-in, your questionnaire and results are housed on a new platform, built to improve the user experience. While your previous vitamin D*action data will be combined with the new data gathered as part of the D*action+Omega-3 project, you will need to create a new account by registering in this system. You will be given a new participant ID to use on your blood spot cards, and, your vitamin D and Omega-3 index payment process, questionnaire, and results will all be available only through this new account.

Enroll in the D*action+Omega-3 Project

Be a force for change in your health and the health care system…

Join the new GrassrootsHealth nutrient field trial: the D*action+Omega-3 Project

It’s simple:

IDENTIFY: You can’t know if your vitamin D level or Omega-3 Index is optimal just because you eat the right foods or take supplements – they both must be measured.


CORRECT: Once you know your vitamin D level and Omega-3 Index, they can be optimized with simple dietary and lifestyle changes.


MAINTAIN: Testing your vitamin D and Omega-3 Index every 4-6 months ensures that levels stay optimal.

Together, we can advance the standard of care to help ensure more people maintain healthy levels of these important nutrients.

Enroll Now!