Can krill oil help lower cholesterol?

In the fight against excessive cholesterol, krill oil might be a game-changer. This unique oil, derived from the tiny, shrimp-like sea organisms known as krill, has drawn attention for its allegedly cholesterol-lowering properties. 

Krill oil, which is rich in omega-3 fatty acids, stands out from other alternative treatments thanks to its distinct composition.

In this article, we explore the fascinating world of krill oil, learning how it functions, uncovering its potential to decrease cholesterol and investigating its extra health advantages. 

Join us as we discover the mysteries of this powerful oil and how it helps to keep cholesterol levels at their optimal level.

What is cholesterol?

Contrary to popular belief, cholesterol is an essential component of our bodies. Every cell contains a waxy, fatty material essential to many physiological processes. However, our health may suffer if our cholesterol levels are imbalanced.

Types of cholesterol 

Lipoproteins are required to carry cholesterol through the bloodstream since it is not soluble in blood.

The two primary forms of cholesterol are as follows:

  • LDL (Low-density lipoprotein) cholesterol

It’s common to refer to LDL cholesterol as “bad” cholesterol. From the liver, it transports cholesterol to every cell in the body.

LDL cholesterol can cause plaque in the arteries when there is excess in the blood, which raises the risk of heart disease and stroke.

  • HDL (High-density lipoprotein) cholesterol

On the other hand, the “good” cholesterol is referred to as HDL. It assists in removing too much cholesterol from circulation and transports it back to the liver for elimination. 

A decreased risk of heart disease is linked to higher HDL cholesterol levels.

The impact of high cholesterol levels

Cardiovascular health can be negatively impacted by elevated LDL cholesterol, particularly when it’s combined with low HDL cholesterol. 

Plaque can develop on the inner artery walls when there is an excess of LDL cholesterol in the circulation. 

Atherosclerosis is the name of the disorder, which can cause hardened and restricted arteries and reduce blood flow to essential organs.

Heart attack, stroke, peripheral artery disease and coronary artery disease are just a few cardiovascular conditions that atherosclerosis makes more likely to develop [1]. 

High cholesterol levels can also impair liver function and raise the risk of gallstone development.

What is krill oil?

The potential health advantages of krill oil have attracted increased interest in recent years. It is a potential dietary supplement since it contains omega-3 fatty acids, antioxidants and other necessary elements. 

The small crustaceans known as Antarctic krill (Euphausia superba), which live in the Southern Ocean’s chilly waters, are used to produce krill oil. 

By consuming phytoplankton and providing food for a variety of marine organisms, these tiny, shrimp-like creatures are an essential component of the marine food chain.

The collected krill are processed to remove the oil from their bodies to make krill oil. 

Astaxanthin, a strong antioxidant, omega-3 fatty acids, phospholipids and the vitamins A, D and E are all present in this oil [2].

How does krill oil lower cholesterol?
Photograph: Prototype-Drop/Envato

How does krill oil lower cholesterol?

As a possible all-natural treatment for controlling cholesterol levels and enhancing cardiovascular health, krill oil has recently gained attention. 

The combination of bioactive substances found in krill oil, which is rich in omega-3 fatty acids, phospholipids and astaxanthin, may reduce cholesterol. 

Featured product offer
Vitalitown Krill Oil
  • Offers rich source of Omega-3 in their natural phospholipid form.
  • Also includes potent antioxidant astaxanthin and essential nutrient choline.
  • Easily absorbed by the body and has no fishy aftertaste or burps.

Krill oil’s impact on cholesterol levels

The effects of krill oil supplementation on lipid and cholesterol profiles have been the subject of several investigations. 

Although this area of study is still being explored, early results point to the following possible advantages:

  • LDL cholesterol reduction

When compared to a placebo, some studies indicate that using krill oil supplements may help lower LDL cholesterol levels

Since elevated amounts of LDL cholesterol can lead to the development of plaque in the arteries, it is frequently referred to as “bad” cholesterol. 

This cholesterol-lowering action is thought to be mediated by the omega-3 fatty acids present in krill oil, particularly eicosapentaenoic and docosahexaenoic acids.

  • HDL cholesterol and triglyceride balance

Additionally, krill oil has demonstrated potential in raising HDL cholesterol levels, the “good” cholesterol that aids in removing extra cholesterol from the bloodstream. 

Additionally, it could assist in controlling triglyceride levels, a different blood lipid that, when excessive, might raise the risk of heart disease.

How does krill oil lower cholesterol?

The precise mechanisms by which krill oil exerts its cholesterol-lowering effects are still being explored. 

However, several factors may contribute to its potential efficacy:

Omega-3 fatty acids

Numerous studies have been conducted on the cardiovascular advantages of omega-3 fatty acids in krill oil, notably EPA and DHA. 

These fatty acids have been linked to better blood lipid profiles, decreased inflammation, and improved cardiovascular health. 

They could influence cholesterol production, transport, and metabolism, resulting in positive alterations in cholesterol levels.


Omega-3 fatty acids in krill oil are found in phospholipid form, as opposed to fish oil, which has them mostly in triglyceride form. 

It has been proposed that phospholipids, structural elements of cell membranes, might improve the uptake and use of omega-3 fatty acids [3]. 

This distinctive quality of krill oil may help explain why it could be useful in lowering cholesterol levels.

Antioxidant properties

The powerful antioxidant astaxanthin has several health advantages and is included in krill oil. 

Inflammation and oxidative stress are linked to cardiovascular disease, and astaxanthin aids in protecting against these conditions. 

Astaxanthin may indirectly maintain normal cholesterol levels by lowering oxidative damage.

What are the other benefits of krill oil?

With its distinct combination of omega-3 fatty acids, phospholipids and astaxanthin, krill oil offers a variety of possible health advantages in addition to lowering cholesterol. Let us look at the more benefits you could acquire in krill oil:

1. Reduces inflammation

Omega-3 fatty acids reduce inflammation, which is linked to a number of chronic illnesses, throughout the body.

Krill oil may help inflammatory diseases including arthritis, inflammatory bowel disease and even asthma by lowering inflammation.

2. Supports cognitive function

DHA is a crucial structural element of the brain and promotes the best possible levels of cognition, memory and learning. 

Regular krill oil consumption may support sustaining cognitive health, particularly as we age.

3. Regulates mood

The function of neurotransmitters, which influences mood regulation, is influenced by omega-3 fatty acids. 

According to some research, taking an omega-3 supplement may help control the signs and symptoms of anxiety and depression while also enhancing mental health.

4. Relieves osteoarthritis

The anti-inflammatory properties of krill oil may aid in reducing joint inflammation and easing osteoarthritis symptoms. 

Omega-3 fatty acids advance general joint health and support joint mobility and reduce stiffness.

5. Nourishes the skin

Astaxanthin is a potent antioxidant that aids in preventing free radical-induced oxidative damage to skin cells. 

It could improve moisture retention, skin health and aging symptoms, making skin appear younger and more vibrant.

nourishes the skin

6. Improves eye health

DHA is a crucial component of the retina, and krill oil contains it to maintain ideal visual performance. 

Regular use of krill oil may aid in maintaining general eye health and preventing age-related macular degeneration.

Featured product offer
ProHealth Longevity Arctic Select Krill Oil™
  • Contains 1000 mg of Omega-3 sources in 60 softgels.
  • Sustainably harvested from the frozen waters of the Antarctic.
  • Also contains potent astaxanthin safeguarding cells from free radical damage.

What are the factors influencing krill oil’s cholesterol-lowering potential?

Several factors can influence the cholesterol-lowering potential of krill oil. 

Understanding these factors is important for optimizing its effectiveness in managing cholesterol levels. 

Here are key factors to consider:

Optimal dosage

The ideal krill oil dose for lowering cholesterol might vary based on a person’s health, cholesterol levels and overall food consumption. 

It is advised to adhere to the manufacturer’s dosage recommendations or seek out specific advice from a healthcare provider.

Consistency and duration

To get the intended cholesterol-lowering results with krill oil supplements, it’s important to take them consistently and according to instructions. 

It can take a few weeks or months of diligent use before substantial reductions in cholesterol levels are seen, so results might not be apparent right away [4].

Genetic predispositions

Individual responses to krill oil and its effects on cholesterol levels might vary based on genetics. 

While some people may observe moderate decreases, others may have more pronounced reductions in cholesterol. 

Individual differences can be revealed through personalized genetic testing or medical expert advice.

Metabolic factors

The efficiency of krill oil in decreasing cholesterol can be affected by individual differences in metabolism and the body’s capacity to handle and use its constituents. 

The way the body reacts to krill oil supplementation may depend on variables including age, gender, body weight, and general health.

Diet and exercise

While krill oil can aid in the control of cholesterol, it’s crucial to have a holistic strategy that includes a balanced diet and frequent exercise. 

Supplementing with krill oil while eating a balanced diet low in saturated and trans fats and engaging in regular physical activity can increase its ability to decrease cholesterol.

Overall lifestyle

Smoking, binge drinking and stress are a few factors that might affect cholesterol levels

The advantages of krill oil in maintaining good cholesterol levels can be enhanced by incorporating lifestyle changes including giving up smoking, using alcohol in moderation and controlling stress.


As a potential all-natural treatment for controlling cholesterol levels, krill oil has promise. 

Beyond its effect on cholesterol, its unique mix of omega-3 fatty acids, phospholipids and astaxanthin offers several possible advantages. 

Krill oil is a fascinating dietary supplement due to its anti-inflammatory characteristics and potential benefits for heart health, cognitive function, joint health and skin health. 

Individual responses, however, could differ, so it’s crucial to speak with a healthcare practitioner for tailored guidance. 

Krill oil can complement a comprehensive strategy for preserving ideal cholesterol levels and general well-being with the right dosage, consistency and consideration of lifestyle variables.


Are there side effects to krill oil?

When used in accordance with suggested doses, krill oil is usually regarded as safe for the majority of people. including any nutritional supplement, there is a chance that some people will nonetheless encounter mild side effects including nausea, a fishy flavor, or allergic responses.

Can krill oil raise blood pressure?

There is no proof that krill oil promotes blood pressure to rise. In fact, studies have linked the omega-3 fatty acids in krill oil to possible advantages for cardiovascular health, including decreasing blood pressure.

Does krill oil help arteries?

Due to the omega-3 fatty acids included in krill oil, which have been associated with better cardiovascular health, arteries may benefit from its use. Krill oil contains omega-3 fatty acids that may lessen inflammation, lower triglyceride levels, and support overall heart health, all of which can improve artery health and function.

Featured product offer
Elm & Rye Krill Oil
  • Contains 500 mg of Krill oil, plus gelatin, glycerol, and water.
  • Rich in antioxidant astaxanthin protecting cells from oxidative stress.
  • Recommended dosage of 2 capsules per serving for adults.


The information included in this article is for informational purposes only. The purpose of this webpage is to promote broad consumer understanding and knowledge of various health topics. It is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.