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Heart-Healthy Omega-3 Fish Oils - how they work and where to get them

Updated on December 22, 2011

Why to Eat These Healthiest Fish

Omega-3's help the heart in more ways than one. They prevent rhythm problems. They lower blood pressue and triglycerides (artery-clogging fats). They prevent clotting, though have not been associated with bleeding risk. A small coronary artery-occluding clot is the main event in most heart attacks.They prevent inflammation, a bad actor in artery disease. (This anti-inflammatory effect may also help folks with rheumatoid arthritis and related diseases. For unknown reasons, omega-3's may help depression and macular degeneration.)

The American Heart Association (AHA) recommends that healthy people eat two servings of fish per week. The following fish are all low in mercury and contain significant amounts of omega-3's per 4 oz serving:

herring 2.3 g

wild-caught salmon 1.5 g

sardines 1.2 g

lake trout 1.2 g

canned light (not albacore) tuna .7 g

shrimp .5g

pollock .5g

The omega-3's in fish are DHA and EPA. Soy, walnuts, and flaxseed contain another omega-3 ALA, which our bodies convert at a rate of 5% into the helpful DHA and EPA.

For people with heart disease, the AHA recommends 1g of DHA and EPA per day. Eating fish is the best way to do this. OTC fish oil supplements are about 1/3 DHA and EPA, so you must take 3g of supplements to get that 1g of what you need.

For more information on mercury and omega-3's in other fish, check out,, and

Here's a little bonus: The highest mercury fish should be eaten rarely if at all and are shark, swordfish, tilefish, and king mackerel.


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    • cathylynn99 profile image

      cathylynn99 6 years ago from northeastern US

      flax seed has ALA, which may not be as helpful as DHA and EPA from fish. thanks for reading and commenting.

    • CaroleGayle profile image

      CaroleGayle 6 years ago from Chicagoland

      Flaxseed oil is a great way to get the healthy omega-3s without the risk of mercury. It's great for vegetarians too since it's a non-animal source.

    • cathylynn99 profile image

      cathylynn99 6 years ago from northeastern US


      thanks for reading and commenting.

    • ohjiunleng profile image

      ohjiunleng 6 years ago from New York

      True, Fish oil is really very important to keep heart healthy all the times

    • cathylynn99 profile image

      cathylynn99 7 years ago from northeastern US

      hi, diogenes,

      thanks for reading.

    • profile image

      diogenes 7 years ago

      Let's here is for fish! Pity it's getting so expensive everywhere...Bob