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Image displaying two supplement bottles with the text "THIS OR THAT?" at the top and "VS" in the center. The bottle on the left is labeled "Antarctic Krill Oil" and the one on the right is labeled "Omega-3 Premium Fish Oil." Both bottles are from California Gold Nutrition. Which is healthier?

Krill Oil vs Fish Oil – Which is Healthier?

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Our Verdict

When comparing krill oil to fish oil, we picked the krill oil.


Both of these products are good sources of omega-3 fatty acids EPA and DHA, and for the specific brand depicted above, in both cases 2 softgels will give you the recommended daily amount (which is generally held to be 250–500mg combined omega-3s per day).

This brand’s fish oil gives more (640mg combined omega-3s per 2 softgels, to the same brand’s krill oil’s 480mg per 2 softgels), but since the krill oil is already in the high end of RDA territory, the excess beyond the RDA is not helpful, and not a huge factor. More quantity is not always better, when the body can only process so much at a time.

However, the krill oil gives some extra things that the fish oil doesn’t:

  • Astaxanthin, a “super-antioxidant”
  • and neuroprotectant, heart-healthy phospholipids

Additional considerations

We have declared “the winner” based on health considerations only. That’s a sticking point for us in all our writings; we’ll occasionally look at and mention other factors, but we know that health is what you’re here for, so that’s what we’ll always treat as most critical.

However, in case these factors may interest you and/or influence you to one or the other:
•⁠ ⁠The fish oil is about 30% cheaper financially
•⁠ ⁠The krill oil is a lot more sustainable environmentally

Back to the health science…

Read more:
•⁠ ⁠What Omega-3 Fatty Acids Really Do For Us
•⁠ ⁠Astaxanthin: Super-Antioxidant & Neuroprotectant

Want some? Here for your convenience are some example products on Amazon:

Krill oil | Fish oil

(brands available will vary per region, but now you know what to look out for on the labels!)

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