The benefits of the omega-3 fatty acids found in krill oil have been widely circulated. From improved brain function to better joint health — omega-3 fatty acids are truly beneficial for your whole body health. 

However, since it's so popular, the market is saturated with literally thousands of krill oil supplements that all promise to deliver results, but rarely do. In fact, some of the most popular brands fill their supplements with watered-down ingredients and fillers. 

That's why Smarter Reviews has compiled months of research about this category. We’ll show you what to look for and what to avoid in a krill oil supplement, and how it can help transform your whole body health. But that's not all, because we'll also reveal the top 5 krill oil supplements on the market today. 
Before we dive into what makes a krill oil supplement effective and worth your hard-earned money, it’s important to break down the science and understand how adding a krill oil supplement to your routine can transform your health. 

How Omega-3s In Krill Oil Boost Your Overall Health

One of the reasons why omega-3s in krill oil are so popular is because of the wide range of health benefits they have been shown to provide in hundreds of clinical studies throughout the years.

According to the Harvard T.H. Chan School of Public Health, omegas "have been shown to help prevent heart disease and stroke, may help control lupus, eczema, and rheumatoid arthritis, and may play protective roles in cancer and other conditions."3

Unfortunately, our bodies cannot produce omega-3 fatty acids and sometimes just seeking it out in our diets may not be enough either. That's why it's so important to add krill oil supplement to your routine.

Why Krill Oil Has The Best Omega-3s

Fish oil has traditionally been a popular source for omega-3s, but due to the emergence of heavy metals in our oceans, krill oil has significantly grown in popularity.

Krill Oil Vs. Fish Oil 


      • Krill and fish oil similarly contain EPA and DHA, but they differ in the way that the omegas are bonded. The omegas in krill oil are mostly bonded to phospholipids, while in fish oil they are bonded to triglycerides. The fat cells in humans are also in phospholipid form. Studies show that phospholipids are more effective for absorption. We suggest finding a formula with at least 500 mg of phospholipids for real absorption power.14, 21


      • In addition to krill oil's greater absorption, it's known to have less fishy aftertastes when a high quality supplement is made with pure krill oil.


    • This powerful antioxidant isn't available in fish oil, but it's found in high quantities in lobster, crayfish and krill.15,17 Astaxanthin boosts skin health and has been shown to increase good cholesterol levels.16,18 To see results, our research found that you need at least 2 mg of astaxanthin per serving.

With its high concentration of omega-3 fatty acids, krill oil has become essential in helping curb stiffness and joint pain, lowering triglyceride levels to boost heart health, and keeping your brain sharp and memory clear.

Your Definitive Krill Oil Checklist

Picking any krill oil off the shelf may not give you the results you were hoping for. That's why it’s important to keep these additional tips in mind when shopping for a krill oil supplement.

Clinically Studied Ingredients

It's the golden rule. Look for clinically studied ingredients that have been proven to deliver results. Though many supplements use oil derived from real krill, unfortunately, not all have been clinically tested and proven to achieve effective results. Look for a krill supplement that uses highly bioavailable, clinically studied ingredients, such as  K·REAL®. 

Clinically Recommended Dosages 

Some brands will use quality ingredients, but skimp out on dosages in order to save money. So even if you’re getting the right ingredients, if they’re not in their recommended dosages, you won’t experience the full benefits. We recommend looking for a supplement that lists at least 1600 mg serving size of pure, effective krill oil. 

Prioritize Quality 

It's vital to prioritize quality when searching for a krill oil supplement, even if that means paying a little more for a high-quality, safe, and clinically-tested formula. Your health is far too valuable to take such a gamble.

Money-back Guarantee  

It’s always a good idea to invest in a krill oil supplement that offers a 100% money-back guarantee that shows the company's faith in its product. Look for brands that offer at least a 90-day money-back guarantee.

Beware Of These Ingredients

  • Mercury

    Mercury is a highly reactive heavy metal, and the long-term exposure to low levels of mercury are highly misunderstood.1,8   Mercury may make people susceptible to arherosclerotic disease—a disease in which plaque builds inside your arteries.18
  • PCBs

    PCBs—or polychlorinated biphenyls—are a group of manufactured organic chemicals. PCBs account for 209 individually chlorinated chemicals.19    PCBs typically have a higher concentration in fish, even with low levels of PCBs in the water.

The major concerns with these two contaminants are that they are persistent in our oceans, and they accumulate up the food chain. Basically, big fish eat little fish, and since big fish are higher up the food chain, the concentration levels of heavy metals (mercury and PCBs) has an increased chance of being dangerous to humans. 19-20

Since fish oil may be extracted from the tissues of fish that are higher up the food chain, it might be more contaminated. However, krill are at the very bottom of the food chain, their lifespans are shorter than fish, and since krill eat algae they are relatively free of dioxins and PCBs. 20

  • Try To Avoid: Amazon Reviews

    Millions of Americans look to Amazon reviews before purchasing their products, but most don’t realize that up to 60% are written by individuals paid to leave positive feedback. Risking your health with reviews that are likely false is too dangerous a game to play when you’re choosing an ingestible supplement

2020's Top 5 Krill Oil Supplements On The Market

We tested 72 different omega-3 supplements, and based on our 5 pillars of excellence: ingredient safety, projected effectiveness, value, return policy, and customer satisfaction, we discovered the Top 5 Krill Oil Supplements of 2020.