Dried blood spot kit
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RootCause Health

Omega-3 Index

Omega-3 Index

One number, the percentage of EPA and DHA in your red blood cell membranes, tied to heart, brain, eye, and joint health. Most Americans test below the desirable 8% to 12% range. Find out where you stand from a single finger prick at home.

Free shipping both ways · Prepaid return envelope included

What this test measures

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Your Omega-3 Index: the percentage of EPA and DHA (the two key marine omega-3 fatty acids) in your red blood cell membranes. An index of 8% to 12% is one marker of better overall health, supporting heart, brain, eye, and joint health. The reference range covers approximately 99% of US adults (2.90% to 12.90%).

How collection works

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Wash your hands, use the included lancet for a single finger-prick, and place one drop of blood in the center circle of the collection card. Let it dry, fill in your details, and mail it back in the prepaid envelope. About five minutes, start to finish.

When you get results

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Your sample is analyzed at our clinical laboratory. Your report typically lands in your secure portal about a week after your sample arrives, with your score, what it means, and your next steps.

Who this test is for

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Adults who want to know whether their diet or supplement routine is actually working. If you have a bleeding disorder or take blood thinners, consult your physician before using this kit.

This test is for wellness purposes and is not a substitute for medical advice.

View full details

Your report

One score. A plan attached.

No jargon walls. Your report shows your index against the desirable 8–12% range, explains what it means for heart, brain, eye, and joint health — then walks you through the loop: measure your baseline, modify with fatty fish or a quality supplement, and monitor with a re-test in 3–4 months.

Omega-3 Index Report

KIT RCH-0O3I-48210

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Your Omega-3 Index. Most Americans test lower than ideal — desirable is 8–12%.

LowIntermediateDesirable

1 · Measure

Your baseline is set. Healthy eating alone doesn't guarantee your levels.

2 · Modify

Fatty fish 2–3× weekly or a quality EPA/DHA supplement; rebalance omega-6.

3 · Monitor

Re-test in 3–4 months to confirm your index is moving the right way.

Everything in the Omega-3 Index kit laid out

In the box

Everything for five quiet minutes.

Collection card — one blood spot is all it takes

Sterile lancet — a gentle finger-prick

Alcohol wipe & gauze pad

Bandage

Prepaid return envelope

Step-by-step instructions

Pairs well with

The Healthspan Panel

Nine cardiometabolic markers — insulin resistance, blood sugar, inflammation, and your full lipid picture — from the same single at-home collection.

Explore the Healthspan Panel →
Reviewing a collection card at home