Thursday, July 14, 2011

Should I take a krill oil supplement?

Recently patients  have asked me about krill oil.

Krill is a crustacean, a little like a small shrimp. It contains the omega 3 fatty acids DHA and EPA.

So should you take a krill oil supplement?

Don’t waste your money! Don't fall for the marketing nonsense. If you know some chemistry you will not be duped. These supplements are very expensive when you look at cost per gram of omega-3 fatty acid.

How many of you had a chemistry course in high school or college? If you have not had a chemistry course or had a bad teacher or forgot what you learned in your chemistry course, you will likely be tricked.

If you want marine derived omega-3 fatty acids then get the lowest cost, most concentrated preparation. See my previous posting to learn more.

The animal sources of those essential fatty acids, EPA and DHA, have not been shown to be important. Your body cannot tell from which fish or crustacean the EPA and DHA came from.

There is no proven benefit from the krill outside of its content of EPA and DHA.


  1. Tuna's are very high in Protein, DHA and EPA. It is also high in Omega 3 fatty acids which keeps you energized all day.

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  2. Alexis: Thanks for the comment.

    DHA and EPA are both omega-3 fatty acids. They have no more energy (calories) than other fat.

    I don't know of any good evidence that they are mental stimulants or otherwise "energize".

    See my next post this week for more.

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