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Comparing Krill Oil vs Fish Oil: Which is Better for Your Health?

Research has found that countries who eat more fish and have more Omega 3 in their diet have a decreased risk of heart disease than countries who don’t, like the US and the UK.

If you don’t like to eat seafood, there are still supplements that you can take to get your necessary dosage.

Are you looking to increase your daily Omega 3 intake? Check out the differences between krill oil vs fish oil and see which is better for your health here.

Krill Oil

Krill is a seafood found in the Antarctic that is part of the largest biomass on the earth. These small, red, shrimp-like creatures naturally make phosphorylated Omega 3.

This is where your krill oil comes from. 

The phosphorylation means that when you take krill oil, you will absorb it more quickly and efficiently into your body. Because of this, you can often buy fewer pills for the same effect that more fish oil capsules will get you. This can end up saving you money in the future.

Krill oil typically has more Omega 3 

Fish Oil

In contrast, fish oil comes from oily fishes like sardines, herring, or tuna. This fish oil can look yellow or gold.

While it doesn’t have the phosphorylation like the krill oil, it does survive longer before the decomposition process starts to occur. This lets your body have more time to process it.

Side Effects

When comparing krill oil vs. fish oil, there are some side effects from taking both, but not many.

If you take these supplements you may experience symptoms including:

  • Headaches
  • Stomach ache
  • Heartburn
  • Diarrhea
  • Bad breath
  • Foul-smelling sweat

Before you start taking any supplements including these, you should check with your doctor.  Because Omega 3 is a blood thinner if you take too much, krill and fish oil can interact with other medications and make them ineffective, so you want to make sure your doctor is okay with you taking these supplements.

Your doctor can also help you find a recommended dosage to start. 


While there are some side effects, there are also many benefits to taking krill or fish oil.

Because both of these oils contain Omega 3 fatty acids, they can help your overall heart health and reduce risks of heart attack or failure. Omega 3 does this by decreasing the high triglyceride amounts in your body.

Omega 3 not only helps with your heart health but may have a few other benefits as well, such as supporting joint health. It can also help with dry eyes and increase moisture to relieve discomfort. 

There has also been research done on Omega 3 to fight cancer, help your immune system stay strong, help mental disorders, and reduce inflammation. 

Krill Oil Vs. Fish Oil: Better Your Health

When considering krill oil vs. fish oil, you really can’t go wrong. Many of them offer the same benefits.

The main difference between the two is that krill oil may contain more Omega 3 than fish oil, and your body will absorb it differently because of the different structure. 

No matter which oil you decide to choose, you can purchase them here

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