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Dr. Bill Harris

👤 Person
447 total appearances

Appearances Over Time

Podcast Appearances

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

Sure. The test that we developed about 20 years ago now, it's called the Omega-3 Index. It's a blood test. It reports the amount of EPA and DHA that are in the membranes of your red blood cells that circulate in your blood. Of course, about half of your blood is water, plasma, and about the other half is red blood cells. So it's very easy to get samples of red blood cells.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

Sure. The test that we developed about 20 years ago now, it's called the Omega-3 Index. It's a blood test. It reports the amount of EPA and DHA that are in the membranes of your red blood cells that circulate in your blood. Of course, about half of your blood is water, plasma, and about the other half is red blood cells. So it's very easy to get samples of red blood cells.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

Sure. The test that we developed about 20 years ago now, it's called the Omega-3 Index. It's a blood test. It reports the amount of EPA and DHA that are in the membranes of your red blood cells that circulate in your blood. Of course, about half of your blood is water, plasma, and about the other half is red blood cells. So it's very easy to get samples of red blood cells.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And the red cell is an example of kind of a surrogate for the other cells in your body that you can't get a sample of. So we like to measure red cell omega-3. We proposed back in 2004, and we still believe today, that an EPA DHA content of 8%, say 8% to 12% approximately. Very few people have anything higher. That range is the optimal range for the omega-3 index.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And the red cell is an example of kind of a surrogate for the other cells in your body that you can't get a sample of. So we like to measure red cell omega-3. We proposed back in 2004, and we still believe today, that an EPA DHA content of 8%, say 8% to 12% approximately. Very few people have anything higher. That range is the optimal range for the omega-3 index.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And the red cell is an example of kind of a surrogate for the other cells in your body that you can't get a sample of. So we like to measure red cell omega-3. We proposed back in 2004, and we still believe today, that an EPA DHA content of 8%, say 8% to 12% approximately. Very few people have anything higher. That range is the optimal range for the omega-3 index.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

Most people are, like I said earlier, 95% of people are below that 8% in America. But we think it's an achievable target. It's a safe target. You can do it with supplements. You can do it with fish. So 8% is the target. The way we do the test, we analyze blood for some clinics, doctor's offices, and they send us blood tubes. And we isolate the red blood cells themselves and analyze them.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

Most people are, like I said earlier, 95% of people are below that 8% in America. But we think it's an achievable target. It's a safe target. You can do it with supplements. You can do it with fish. So 8% is the target. The way we do the test, we analyze blood for some clinics, doctor's offices, and they send us blood tubes. And we isolate the red blood cells themselves and analyze them.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

Most people are, like I said earlier, 95% of people are below that 8% in America. But we think it's an achievable target. It's a safe target. You can do it with supplements. You can do it with fish. So 8% is the target. The way we do the test, we analyze blood for some clinics, doctor's offices, and they send us blood tubes. And we isolate the red blood cells themselves and analyze them.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

But most of the time, we use the dried blood spot method. where we send a little kit to your home and you open it up and you've been through this. Clean your finger, poke your finger with a little lancet, get a drop of blood, put it on a card and put it in the mail and send it back to us and we send you a result.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

But most of the time, we use the dried blood spot method. where we send a little kit to your home and you open it up and you've been through this. Clean your finger, poke your finger with a little lancet, get a drop of blood, put it on a card and put it in the mail and send it back to us and we send you a result.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

But most of the time, we use the dried blood spot method. where we send a little kit to your home and you open it up and you've been through this. Clean your finger, poke your finger with a little lancet, get a drop of blood, put it on a card and put it in the mail and send it back to us and we send you a result.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And in that result, we'll tell you what your omega-3 index is on kind of, you know, a standard red, green, yellow scale everybody uses. And we'll give you some suggestions exactly.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And in that result, we'll tell you what your omega-3 index is on kind of, you know, a standard red, green, yellow scale everybody uses. And we'll give you some suggestions exactly.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And in that result, we'll tell you what your omega-3 index is on kind of, you know, a standard red, green, yellow scale everybody uses. And we'll give you some suggestions exactly.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

So if your omega-3 index is, say, at 5%, which is pretty typical, we have a calculator on our website that you can link to and put in your 5% index, and then it will tell you how much omega-3 EPA DHA you probably should try to eat additionally, how much you should increase if you want to get up to 8%.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

So if your omega-3 index is, say, at 5%, which is pretty typical, we have a calculator on our website that you can link to and put in your 5% index, and then it will tell you how much omega-3 EPA DHA you probably should try to eat additionally, how much you should increase if you want to get up to 8%.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

So if your omega-3 index is, say, at 5%, which is pretty typical, we have a calculator on our website that you can link to and put in your 5% index, and then it will tell you how much omega-3 EPA DHA you probably should try to eat additionally, how much you should increase if you want to get up to 8%.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And that's data we've got from other studies that we've reduced to an equation that says most people who are at 5% need about another 1,000 milligrams a day of EPA and DHA to get average 8%. That's a good place to start. So that's part of the report that you get back from OmegaQuant, our lab.

Dhru Purohit Show
The Mind-Blowing Science of Omega-3 Fatty Acids for Heart Health, Brain Health and Longevity (Rebroadcast)

And that's data we've got from other studies that we've reduced to an equation that says most people who are at 5% need about another 1,000 milligrams a day of EPA and DHA to get average 8%. That's a good place to start. So that's part of the report that you get back from OmegaQuant, our lab.