4 Best Krill Oil Brands 2022 Reviews & Buyer's Guide | KetoVale
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What Are The Top Krill Oil Supplements?

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Over the years, krill oil has quickly become just as popular as fish oil. It contains an excellent source of omega-3 fatty acids as well as antioxidants to help reduce inflammation and fight oxidative stress.

Some research suggests that krill is more abundant in our oceans then many different kinds of fish, which means supplementing with it might be more sustainable and better for the environment than fish oil.

Krill oil makes a great addition to any anti-inflammatory diet, but picking out a good brand to supplement with can be tricky. You’ll want to make sure that your krill oil comes from a clean source and does not contain any hazardous ingredients or chemicals.

This article discusses how to pick out a brand of krill oil as well as the best krill oil brands for your diet that we have found so far.

What is Krill Oil?

Krill oil is made from krill, which are a type of crustacean that lives in the ocean. They look like tiny shrimp and are needed to support the aquatic life in our oceans.

Antarctic krill
Antarctic krill

Krill is the primary source of food for many different types of whales. It’s high in healthy omega-3 fatty acids and is used in capsule form to help support various areas of human health.



Most krill oil supplements come from Antarctic krill, which is a wild-caught version of krill that is presumed to be healthier than farm-raised versions because it has not been treated with chemicals.

Which is Better? Krill oil or Fish Oil?

Krill oil contains a unique fatty acid composition in which phospholipids help distribute omega 3’s throughout the body. For this reason, krill oil might be better absorbed than fish oil (1).

Krill oil also contains the antioxidant astaxanthin, which has anti-inflammatory effects on the body. Astaxanthin is also found in salmon or krill. Keep in mind that unless your fish oil contains salmon, you may be missing out on this important antioxidant.

Because krill is so abundant in our oceans, most krill oil supplements come from wild-caught sources. This means they are less likely to contain harmful additives or chemicals.

Additionally, krill oil guarantees that you are getting DHA and EPA from omega-3 fatty acids as well as the antioxidant astaxanthin. Fish oil might contain higher levels of omega-3 fatty acids, but it does not always contain antioxidants.

Research shows that krill oil may have the following health benefits:

  • Acts as a natural antidepressant and enhances learning areas of the brain (2)
  • Protects against Alzheimer’s disease (3)
  • Helps manage blood sugar levels (4)
  • Reduces cholesterol and protects against heart disease (5, 6)
  • Boosts immunity and increases lean body mass (7)
  • Lowers inflammation and improves skin health (8, 9)

Krill oil is generally safe to consume. A dosage of 1-3 g of krill oil per day (BMI-dependent) is effective at reducing total cholesterol, blood glucose, and triglycerides (10).

Some common and mild side effects of krill oil may include bad or fishy breath, fishy aftertaste, upset stomach, constipation or loose stools. Make sure to talk to your doctor before supplementing with krill oil (11).

What to Look For When Buying Krill Oil Products?

When picking out any fish oil or krill oil product, it’s always important to look for clean sources with the highest levels of purity. Here are some tips.

  • Look for deep-sea cold-water Antarctic krill

Try to find a krill oil product that is made from Antarctic krill, which is a good choice because they are wild-caught and reproduce quickly to help sustain the environment.

Antarctic krill usually live in deep waters where they are far away from industrial pollution. This makes them a good clean source of omega 3 fatty acids.

You shouldn’t have a problem finding a krill oil product that’s made from Antarctica krill, but it’s a good idea to double check your product just in case.

  • Check for purity tests and quality standards

The good thing about krill oil is that because most of it is wild, it does not need to go through as much testing as fish oil does.

Some krill oil brands will further purify their products by removing unwanted toxins, so this is a good thing to look out for.

  • Check the EPA and DHA levels

You’ll also want to look for a krill oil brand with the highest amount of EPA, DHA and astaxanthin. These are the primary active ingredients in krill oil that are responsible for so many health benefits.

It might be helpful to compare your krill oil product side by side and pick the one with the most amount of these three ingredients. Some products will list the phospholipid content, which is a good indication of how bioavailable the product is.

  • Make sure there is no fishy aftertaste

Many fish and krill oil supplements have a fishy aftertaste that causes you to burp up the taste of fish. 

To avoid the fishy aftertaste, look for a supplement that is properly encapsulated and is fresh by checking the expiration date.

According to Perfect Keto Krill Oil, a fishy aftertaste occurs when the supplement is oxidized. This can occur if it is old, has been overly exposed to oxygen, or has been exposed to heat, which breaks down the omega 3 fatty acids.

Oxidation makes the product useless or even harmful by releasing free radical toxins in the body. The presence of astaxanthin helps prevent this. 

Many products will state that their product has no fishy aftertaste. Look for one that lists the steps it has taken to ensure the product is aftertaste-free.

Best Krill Oil Tablets, Softgels and Capsules to Buy

Thanks to its healthy fat and antioxidant properties, krill oil makes a great addition to any diet. However, some products are better suited for the ketogenic diet than others.

Here are our top recommendations for the best krill oil brands on the market:

Perfect Keto

perfect keto krill oil

Our top choice for the best keto-friendly krill oil supplement is Perfect Keto Krill Oil.

It contains an excellent source of omega 3 fatty acids and astaxanthin from Antarctic krill, which is the cleanest source you can buy.

It also contains MCTs from coconut oil. This helps support the ketogenic diet by aiding in the production of ketones. You can read more about the health benefits of MCT oil here.

This product contains 350 mg of krill oil and 650 mg of MCT oil per capsule. There are no added sugars, sugar alcohols, gluten, chemicals, preservatives, corn, or soy. It also does not have a fishy aftertaste like many fish oil products do.

One capsule also contains 20 mcg of astaxanthin, 52 mg of EPA and 24 mg of DHA. These are the three primary active ingredients that give krill oil it’s amazing health benefits. We recommend taking one to three capsules per day for the best results.

Here is the nutritional breakdown of one capsule:

  • 10 calories
  • 1 gram of fat
  • 350 mg of krill oil
  • 94 mg of omega 3 fatty acids
  • 52 mg of EPA
  • 24 mg of DHA
  • 196 mg of phospholipids
  • 29 mcg of astaxanthin
  • 650 mg of MCT oil

The primary difference between this product and other krill oil products is the addition of MCT oil. For this reason, we recommend Perfect Keto Krill Oil for ketogenic dieters.

Where to buy: Go here for best price!


onnit krill oil

If you’re looking for a general krill oil supplement to enhance any diet, then we recommend Onnit Krill Oil.

It features pure and fresh krill oil sustainably sourced from clean waters and processed locally to ensure that it retains as much of its nutrient profile as possible.

The extraction process of krill oil is important because oil that is not fresh or has been heated to high temperature will lose much of its antioxidant profile. Antioxidants tend to be heat-sensitive and can be killed off easily if not handled carefully.

Like the Perfect Keto Krill Oil, Onnit Krill Oil also contains DHA, EPA, and astaxanthin. It does not contain MCT oil, which is why we recommend this product on any general diet.

However, you can still take this product on the ketogenic diet. If you want the added benefit of MCT oil, then go with the Perfect Keto Krill Oil.

Two capsules contain the following:

  • 5 calories
  • 1 gram of fat
  • 1 gram of krill oil
  • 450 mg of phospholipids
  • 240 mg of omega 3 fatty acids
  • 130 mg of EPA
  • 60 mg of DHA
  • 200 mg of astaxanthin

Where to buy: Go here for best price!


You can’t go wrong when you purchase a Bulletproof product. They contain the most active ingredients and precise formulas, and use only the best extraction practices to ensure you’re getting a high-quality product. 

Bulletproof Omega Krill Complex

We tried the Bulletproof Omega Krill Complex and loved the natural lemon flavor. Aside from that, we love that Bulletproof uses a blend of wild fish oil concentrate as well as Arctic Krill. These include Norwegian herring roe, Atlantic and Pacific fish oils.

As we mentioned above, Arctic krill is favorable because it comes from deep sea sources that are clean and free of most chemicals. Bulletproof Krill Oil also contains gamma-limolenic acid (GLA) from borage seed oil.

GLA is an anti-inflammatory omega 6 fatty acid that has been shown to boost the immune system. It helps fight against inflammation induced chronic disease (10). 

Bulletproof Omega Krill also contains the antioxidant astaxanthin, which has been shown to have photoprotective and anti-inflammatory properties. It can also be used to protect against heart disease (11, 12). 

The addition of olive fruit extract provides further antioxidants that help benefit your skin and heart. 

This product contains 2,420 mg of krill oil and wild fish oil concentrate per two-capsule serving. It has 1,560 mg of total omega 3 fatty acids with 885 mg of EPA and 480 mg of DHA. It also contains 100 mg of phospholipids.

Here is the total nutritional breakdown of a two-capsule serving:

  • 25 calories
  • 2.5 grams of fat
  • 2 grams of polyunsaturated fatty acids
  • Less than one gram of protein
  • 1,560 mg of omega 3 fatty acids
  • 885 mg of EPA
  • 480 mg of DHA
  • 100 mg of phospholipids
  • 70 mg of GLA
  • 20 mg of olive fruit extract with 5 mg of hydroxytyrosol
  • 2 mg of natural astaxanthin  

Other ingredients include gelatin, glycerin, natural vitamin E with mixed tocopherols and tocotrienols, purified water, lemon oil. 

Where to buy: Check current best deals here!

Sports Research

sports research krill oil

Sports Research is a popular brand of supplements that carries high-quality ingredients.

Their Antarctic Krill Oil is made from clean sources of krill. It also has omega 3 phospholipids and astaxanthin, which are the top ingredients that you want to make sure your krill oil product has.

The formula is gluten-free and made from non-GMO ingredients. It’s also GMP certified, which stands for “good manufacturing practice.”

This ensures that the product was manufactured according to high-quality standards. This is always an ideal seal of approval to look for when shopping for any supplement.

We also like that this product is third party quality tested, which further contributes to its safety and level of quality. It does not have a fishy aftertaste.

Here is the nutritional breakdown of one liquid softgel:

  • 5 calories
  • 0.5 grams of fat
  • 500 mg of krill oil
  • 115 mg of omega 3 fatty acids
  • 64 mg of EPA
  • 30 mg of DHA
  • 200 mg of phospholipids
  • 500 mcg of astaxanthin

You can take this krill oil whether or not you’re on a ketogenic diet. It would be a great addition to any anti-inflammatory diet or to help support brain and heart health.

Where to buy: Shop Now!


Krill oil has similar health benefits to fish oil. It’s high in omega 3 fatty acids as well as the antioxidant astaxanthin, which is found in salmon.

With health benefits that include blood sugar control, anti-inflammatory and antioxidant benefits, and protection against heart and brain problems, krill oil makes a great addition to any diet.

We reviewed four of the top krill oil supplements. Our number one pick for the ketogenic diet is Perfect Keto Krill Oil. It features Antarctic krill, which is the cleanest source you can buy. It also contains MCT oil to further support your ketosis needs.

If you’re on a regular diet, Onnit’s Krill Oil is a great choice for you.

The three things you always want to make sure your krill oil contains is high levels of EPA, DHA, and astaxanthin. These are the three primary ingredients that give krill oil its many health benefits.

Any of our suggestions would make a great addition to your diet, but go with the Perfect Keto if you’re a ketogenic dieter due to the addition of MCT oil.

Photo credit: wollertz / depositphotos.com

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