How much omega-3s are enough?

The basic dose we advocate for the Track Your Plaque program is 1200 mg per day of EPA + DHA, the essential omega-3 fatty acids.

1200 mg EPA+DHA is generally obtainable by taking 4 capsules of 1000 mg of fish oil, since the majority of preparations contain 180 mg EPA and 120 mg DHA per capsule.

But how will you know if a higher dose wouldn't be even better?

The principal parameter to look at is triglycerides. If triglycerides remain above 60 mg/dl, we usually consider increasing fish oil.

Another measure that's very important is intermediate-density lipoprotein, or IDL, also called "remnant lipoproteins" on a VAP panel. Persistence of any IDL or remnant lipoproteins is reason to consider more fish oil. Most commonly, if there is some persistence of either, we increase fish oil to 6000 mg per day of a standard preparation, or 1800 mg/day of EPA+DHA.

The only time we see persistence of IDL or remnant lipoproteins with this higher dose is when triglycerides are really high. If starting triglycerides are, for instance, 500 mg/dl, then even this higher dose may be insufficient. This is when more highly concentrated preparations of fish oil may be necessary, occasionally even the prescription form, Omacor. (We currently use Omacor only when high doses of EPA+DHA are required, most because of its outrageous cost. Two capsules per day costs around $120 per month; three capsules per day to provide 1800 mg/day of EPA+DHA costs $180 per month. I think this is outrageous and so we use it only when absolutely necessary.)

You might even argue that a higher dose of 1800 mg EPA+DHA, or 6000 mg of a standard capsule, might be preferable for more assured reduction of heart attack risk--even when triglycerides and IDL are perfectly under control. I wouldn't argue with you. But you won't observe any measurable feedback that tells you that a heightened effect is being obtained. I take that dose myself, in fact, despite the fact that elimination of wheat products and weight loss was sufficient to drop my triglycerides to the target level. I figure it's a small additional effort for added peace of mind.

Comments (7) -

  • Anonymous

    5/8/2007 7:46:00 PM |

    I have just joined the Track Your Placque Site.  I take fish oil daily, 3200 EPA/1600 DHA.  At this dose my AA/EPA score is 2.14.  When I had LDL electrophoesis done, my pattern was A pattern and I was not on the fish oil at that time.  I am wondering whether it would be better to have an NMR test or a VAP test, or both?

  • Dr. Davis

    5/9/2007 1:57:00 AM |

    Hi,
    In general, I prefer the NMR. However, the electrophoretic test you already had should provide more information than just breaking your LDL pattern down into types "A" or "B". The real numbers to pay attention to are the LDL subclasses III and IV. Add up those numbers to determine how much small LDL you really have (in percent). Anything more than 10% we regard as sigificant.

  • Mike

    5/9/2007 8:00:00 PM |

    Is there any reduction in triglycerides from taking flax seed or other non-EPA/DHA sources of omega-3s?

  • Anonymous

    5/10/2007 12:18:00 AM |

    Thank you.  The report is broken down into the various LDL subclasses.  This information is helpful.

  • Dr. Davis

    5/10/2007 12:28:00 AM |

    Mike-
    No, unfortunately not. Only fish oil exerts the sort of triglyceride and lipoprotein correcting effects that we need.

  • Anonymous

    5/12/2007 10:12:00 PM |

    Dr., what do you think of Krill oil? Is it better than "regular" fish oil?

  • Dr. Davis

    5/13/2007 3:25:00 AM |

    We've actually had a fairly extensive conversation on this question on the Track Your Plaque Forum. Fish oil is tried and true, and the advantages of krill oil--purportedly containing less pesticide residues (no less mercury since fish oil does not contain mercury) and virtually pure DHA--are not fully worked out. However, if you choose to give it a try, let us know what kind of results you get.

Loading
A Track Your Plaque failure

A Track Your Plaque failure

We recently had a man suffer a heart attack after beginning the program. Let me tell you the details.

Jerry's heart scan score 781, age 53. Multiple lipoprotein abnormalities: HDL 32 mg/dl, triglycerides 279 mg/dl, nearly all of his LDL was in small particles with an "effective" LDL (LDL particle number), and very high IDL. So Jerry added fish oil 6000 mg per day, niacin, and vitamin D to the statin drug prescribed by his primary physician. Jerry added oat bran, ground flaxseed, and tried to eat fish at least once per week.

However, Jerry continued to smoke. He'd smoked for 40 years (!), up to 2 packs per day, and just reasoned that it was too late to quit. He also continued to indulge in the packaged, processed foods that were part of his convenience story business.

Jerry's stress test was normal--no chest pain, normal EKG, normal images of blood flow, though he was somewhat breathless, likely from his lung disease from smoking.

Two months into his program, he abruptly experienced severe crushing pain in his chest. Because he was traveling, he ended up in a small local hospital. A failed angioplasty led to urgent coronary bypass surgery.

Jerry's alive. Now he's a non-smoker. He's got the pursed lips and peculiar breathing pattern that smokers get, but he's breathing.

Lesson: In the face of the most powerful program for heart disease known, it can still be overpowered by Twinkies, Hoho's, pretzels, chips--and cigarettes.

The new year is approaching. Be grateful for another year of healthy life and commit to a new year of even greater health. If you're a smoker, there's no choice: you've got to quit.
Loading