Why You Should Eat Omega-3 Fats

Hi friends! Matt and I are currently cruising the high seas (see what we are up to on Instagram!), so I’m excited to share a guest post with you today from fellow blogger and dietitian Marisa Moore all about omega-3 fats. To inspire you, she also included a delicious salmon taco recipe at the end of this post! Enjoy – take it away, Marisa!

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Why You Should Eat Omega-3 Fats
by: Marisa Moore, RDN

The word fat conjures all kinds of thoughts and images. When it comes to food, fat can be a really good thing. Fats provide flavor and texture to food and are essential to good health. With a long list of health benefits, omega 3 fats earn rock star status in the category.

What are they?

Omega-3 fatty acids (omega-3s for short) are a type of unsaturated fat found in two active forms: EPA (eicosapentaenoic acid) and DHA (docosahexanoic acid). EPA supports heart health while DHA is a major component of cell membranes and plays an important role in brain development and function. ALA (alpha linoleic acid) is a third form of omega-3s, which must be converted to EPA and DHA in the body to be effective. Unfortunately, that conversion is not very efficient.

Why eat them?

Omega-3s protect the heart. They help slow the buildup of plaque in the arteries, decrease unhealthy fats in the blood (triglycerides) and lower blood pressure. Omega-3s may also help reduce inflammation and reduce the risk for Alzheimer’s disease and rheumatoid arthritis among other conditions. Supplementing omega-3s (fish oil) has even been shown to help reduce anxiety and depression. And there are some vain reasons to get your omega-3s too. Because of their role in maintaining cell membranes, omega-3s can help you maintain healthy, beautiful skin and combat premature aging.

Sauteed Atlanta Salmon

Where do you get them?

Ounce for ounce, fatty fish is by far the best source of omega-3s in the form of EPA and DHA. Some of the highest sources include salmon, sardines, anchovies, black cod, albacore tuna, lake trout, and mackerel. You can also get a small dose of omega-3s from grass fed meat and dairy products.

Vegetarian sources of omega-3s are also healthy additions to the diet but you can’t rely on them to meet your omega-3 needs. Plant-based sources provide ALA, which alone cannot achieve what the more active forms, EPA and DHA, accomplish in the body. Still you should include ALA rich foods like seaweed (nori), soybeans, walnuts, chia seeds, ground flaxseed and flaxseed oil in your diet.

Walnuts on

If you don’t eat fish, supplementation with fish oil or a microalgae supplement (vegan) is the best alternative.

So for most people you will need to either eat fatty fish at least twice a week or take a supplement to meet your omega-3 needs.

How much do you need?

The American Heart Association recommends eating fatty fish at least twice a week. If you are unable to eat the recommended amount of fish or you have a history of heart disease or high triglycerides, check with your doctor or dietitian – you may benefit from taking a fish oil supplement.

Though I don’t recommend a lot of supplements, fish oil supplements are often beneficial for clients who don’t eat fish regularly – and that’s the majority of them. Supplementation has been shown to be quite effective for a variety of conditions from reducing high blood pressure and cholesterol to treating rheumatoid arthritis.

At this point, you’re probably wondering how much you should take in pill form. There are no standard doses for omega-3s. Effective doses are specific to the condition. However, the World Health Organization and other agencies recommend a minimum of 300-500 mg of EPA and DHA and 800-1,100 mg of ALA each day from food or a supplement. Most therapeutic doses of fish oil exceed those numbers for EPA and DHA. People who are already at risk for heart disease may be encouraged to take more. Check with your doctor or dietitian for specifics on this.

In any case, the key is to get a supplement that provides both EPA and DHA. And quality matters. Be sure to check that the supplement provider follows Good Manufacturing Practices (GMPs) and is certified by an independent testing organization like the NSF.

Convinced, but don’t really like fish?

Sardines in Olive Oil

I understand. Some people have a hard time adjusting to the strong flavor of fish. Before you give up on fish forever, consider these tips:

  • Pair fish with flavors you enjoy.
  • Add bold flavors to temper the fishy flavor. Instead of eating sardines straight from the can, pair them with a spicy mustard or tomato sauce.
  • Pair salmon with citrus (as in the recipe below) or marinate it using Asian flavors.
  • Experiment with different cooking methods like grilling, roasting, sautéing and broiling to get the flavor you desire.
  • Other tips for fitting more omega-3s into your day:
  • Top mixed greens with leftover salmon for a delicious and hearty salad.
  • Try high quality sardines on whole grain crackers with mustard for a protein rich snack.
  • Add ground flaxseed or chia seeds to oatmeal, yogurt or a smoothie.
  • Top salads with crunchy walnuts instead of croutons.
    And now, for some more inspiration, a recipe! Enjoy.

Grapefruit Glazed Salmon with Grapefruit Avocado Salsa
Marisa Moore

Packed with heart healthy fats, this recipe combines omega-3 rich salmon with creamy avocado and tart grapefruit for a quick and easy lunch or dinner. Salmon pairs particularly well with citrus and winter is the perfect time to enjoy grapefruit.


Ingredients (serves 4):

  • 1 lb. salmon (cut into equal fillets)
  • 1T grapeseed or canola oil
  • Salt and pepper to taste
  • ¼ c good quality grapefruit marmalade
  • 8 corn tortillas, warmed

Grapefruit Avocado Salsa:

  • 1 medium avocado, diced
  • ½ c grapefruit segments, roughly chopped
  • ¼ c lime juice
  • ¼ c red onion, diced
  • 2 T fresh cilantro, chopped
  • Coarse salt to taste


  1. Position a rack in the top third of the oven. Preheat the oven to 400°F.
  2. Combine the avocado, grapefruit, lime juice, red onion, cilantro and salt in a small mixing bowl. Toss gently to mix. Set aside.
  3. Season the salmon with salt and pepper on both sides. Lightly oil a baking sheet. Place the salmon on the baking sheet. Bake at 400°F for 12 minutes. Remove the salmon from the oven.
  4. Set the broiler to high. Spread a thin coating of the marmalade on the tops of the salmon. Broil 2-4 minutes. Watch closely. Remove the salmon when golden brown.
  5. Add equal portions of the salmon onto the warmed tortillas. Top with the grapefruit avocado salsa. Serve.

This dish pairs well with a cabbage slaw and/or a side of savory black beans.

Marisa Moore is a registered dietitian nutritionist, food and nutrition communications consultant and recipe developer based in Atlanta, GA. Connect with her on twitter, instagram or Facebook and check out her blog at


  1. 1

    Great recipe!

  2. 3

    I love me some omega-3s for a lot of things but there is some conflicting evidence about them and heart disease now. I would definitely check with a healthcare provider before taking them for heart disease – we are being taught in my program not to prescribe them for that purpose right now because evidence based medicine may not support it. Just a thought!

    That recipe looks fab though!

    • 4

      Hi Madeline! Thanks for the heads up on the potential changes. I love how nutrition science evolves! I based this on current evidence based summaries which support omega 3s (EPA/DHA) as possibly effective at lowering triglycerides and certain risks associated with heart disease. As I mentioned and in line with current guidelines, it’s always a good idea to check with your doctor or dietitian before beginning a new regimen – especially when it comes to supplementation.

  3. 5

    Great info! I really enjoy fish and would like to cook it at home more often. Love the idea of pairing salmon with grapefruit. Sounds so fresh and delicious.

  4. 7

    wonderful info!

  5. 9

    I used to eat salmon several times a week, but have since scaled it back. I need to add it into my diet again and not always eat it so sporadically. For those times when I don’t have it regularly I think there is some fish oil in the house somewhere (haha), so I can always supplement with that. Thanks for the info!

    • 10

      Salmon is such a versatile option. I’m so comfortable with it but I’ve been working in other types of fish lately… lake trout is particularly tasty!

  6. 11

    I love sardines. I find that the smoked flavor tastes a lot better than the plain.

  7. 13

    Love love love this post Marisa!! Omega-3’s are the bee’s knees, and your Grapefruit Glazed Salmon Tacos sound heavenly!! I love the idea of marinating and adding citrus flavor to cut back on the fishiness of things. Great tips as always, friend :)

  8. 15

    Great post! I’m always trying to get my prenatal patients to try sardines!

    • 16

      Thanks Emily! Sardines are a tough sell for many. I’ve had the most success when they are added to tomato based dishes but I can imagine trying sardines for the first time while pregnant would be a bit of a challenge :)

  9. 17

    Oooh I’m on such a grapefruit kick right now – these look DELISH!


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