Fish vs Krill oil- what actually is the difference?

By Sunday, September 21, 2014 0 No tags Permalink 0
This is a question I get asked so frequently. Is there actually a difference?

Both fish and krill oil contain the essential omega-3- fatty acids called EPA (eicosapentaenoic acid) and DHA (docosaheexaenoic acid). It is important to get these in the diet as the body cannot produce them on it’s own. EPA and DHA have reportedly been known to help with:

  • healthy cell function
  • development and functioning of the brain and nervous system
  • cardiovascular disease and managing cholesterol
  • inflammation
  • blood pressure
  • oxidative stress
  • hormone production
  • liver and immune function
  • thyroid and adrenal support
  • arthritis (all types)
  • healthy skin and hair

So what exactly is the difference? Read below.

Krill oil

Studies have shown that krill may be more potent that fish oil. This is believed to be due to the omega-3’s in krill oil being in the form of phospholipids, which is a form that our bodies can utilise more readily compared to fish oil (triglyceride form).

Krill oil is also known to contain an antioxidant called astaxanthin, known to be one of the most potent antioxidants in nature.

Fish oil

Fish oil is usually derived from sardines, anchovies, mackerel and salmon. Even though more studies are starting to be done on krill oil, fish oil research for treating all types of conditions are extensive. For this reason some individuals choose fish oil as their supplement of choice.

What to consider

I believe that getting, as much of your nutrients from food should be your aim. Fish contains other nutrients on top on EPA and DHA such as vitamin D, selenium and a complete fatty acid profile to name a few, whereas most omega-3 supplements lack these. I would recommend at least three serving of fish per week (make sure you ask for wild caught varieties). However this can become difficult when most of the fish we are buying are cage fed and possibly full of toxins.

If you choose to supplement further then when choosing an omega-3 supplement make sure it’s comes from a good source (choose only Antarctic krill if this is your choice). If I was to encourage you to invest a bit more on a supplement, without doubt it would be omega-3’s. Better quality means you are less likely to be ingesting oxidised fats, which can be a detriment to your health.

Things you need to consider and ask when choosing a supplement should be:

  • purity- does it contain low amounts of heavy metals and other contaminants?
  • freshness- during manufacturing has the oil been stored and handled well before getting to the shelf?
  • potency- is it the right potency for what your wanting to treat?
  • sustainability- is the fish harvested in a sustainable manner?
  • bio-availability- are the fatty acids in the oil in the correct molecular structure for the body to absorb?

So when your next going to buy you fish oil make sure you ask a little more about where it is sourced from. It’s more than just a question about fish vs krill oil, it’s a question about quality!

Love life,
Zoi xx


* Disclaimer: My posts are not to be used to treat or diagnose health concerns and provided as information only. They should not be used as individualised treatment plans and programs. Contact your health professional to investigate what advice is best for you.