Top 10 FAQs & Answers About Krill Oil

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Krill oil: discovering the superfood.

Krill oil is a wonderful super food, useful for taking care of the whole body because it not only represents one of the best natural sources of Omega 3, but also because it provides other very valuable nutrients. It is beneficial for the heart, brain, liver, skin, eyesight, joints and even for the pains associated with PMS.

Krill (Euphausia superba) is a small crustacean that lives in the deep waters of the Antarctic Ocean and represents one of the most abundant biomasses on the planet (approximately 379,000,000 tons).

Another point in favor of krill oil is that it has very few contraindications and its adverse effects are almost non-existent. In addition, it is a natural, effective and easy to take supplement. However, not all products are created equal and buying the best quality krill oil is essential to achieve the desired effects.

Why do we need omega-3s in our diet?

A July 2016 study published in Progress in Lipid Research showed that there are significant deficiencies in the levels of omega-3 EPA (eicosapentaenoic acid) and DHA (long-chain docosahexaenoic acid) among the majority of the world's population.

What is the recommended dose of krill oil and how often should I take it?

Krill oil is a food supplement containing the cold drawn oil of Antarctic krill (Euphausia superba), rich in long-chain omega-3 essential fatty acids EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), bound to phospholipids, which improves the absorption and bioavailability of omega-3 compared to other sources of omega-3. Furthermore, we naturally find a significant amount of choline and astaxanthin.

Its presentation can be in capsule or liquid (syrup).

Box of 40 capsules of 500 mg, in blister.

Box of 80 capsules of 500 mg, in blister.

Box of 120 capsules of 500 mg, in blister.

Some capsules can be 1000 mg, depending on the brand.

Maintenance dose (adults and children> 12 years): 1-2 capsules / day with food, or following the recommendations of an expert.

Reinforcement (adults): 3-5 capsules / day, with food, preferably breakfast.

Pregnancy and lactation: 2-3 capsules / day, with food.


Do not exceed the recommended daily dose.

Krill oil should not be used as a substitute for a balanced and varied diet, nor for a healthy lifestyle.

People taking blood thinning medications should consult their doctor before consuming krill oil

Keep out of the reach of children.

Keep in a cool and dry place.

May contain allergens: fish gelatin capsule. May contain traces of crustaceans.

Liquid krill oil, orange flavor, ideal for children, who cannot swallow capsules yet. The bottle contains 150 milliliters of product. Its administration form and its delicious flavor facilitate acceptance by children. The Omega 3 in krill oil favors the correct development of the brain during childhood.

This supplement is enriched with Vitamin D3, an essential nutrient for bones. Also, krill astaxanthin prevents visual problems in children.

It is recommended to take a teaspoon daily, equivalent to 5 milliliters. This supplement does not contain artificial colors or flavors.

Some commercial brands have produced liquid krill oil with various flavors to enhance its appeal to the palate, but generally these products are intended for the pediatric population.

Can krill oil cause adverse reactions?

An excess of krill oil can cause digestive disorders (diarrhea, stomach pain, nausea, belching, flatulence) and insomnia. In any case, the manufacturer's recommended doses must be respected, since vitamin E can accumulate in the liver and cause toxicity, which is usually manifested by clotting problems.

Biochemical composition of the Krill oil capsule.

-Phospholipids: 225 mg

-Total omega-3 fatty acids: 125 mg

of which EPA 67.5 mg

DHA 30 mg

-Coline: 25 mg

-Astaxanthin: 0.2 mg

How does krill oil work in the body for health benefits?

Regular consumption of krill oil provides a large number of benefits for our well-being, helping to:

• Strengthens the immune system, skin and joint health, reduces inflammation and fights the signs of aging.

• Promote vascular health, both in the arteries and in the veins.

• Control cholesterol

• Regulate blood sugar levels.

• Improves the function of the nervous system, concentration, memory and learning.

Traditional fish oil is rich in omega3 but low in antioxidants. However, krill oil combines antioxidants with omega-3s. Naturally it contains an antioxidant called astaxanthin, the red pigment that gives krill and other crustaceans their typical reddish color, very important to combat oxidative stress and that provides various benefits for skin, eyesight and cellular health.

• Krill oil is rich in astaxanthin, a carotenoid antioxidant, which inhibits oxidation and can neutralize the oxidative effect of free radicals, maintaining the normal functionality of cells.

• As we mentioned earlier, there are many foods that contain antioxidants, a very valuable nutritional supplement to help slow down the signs of aging.

• Krill oil also helps reduce joint pain and increase flexibility, leading to a more active and healthy lifestyle.

• Krill oil is a natural substance that contains many beneficial nutrients for your health. There are few products that have a higher density of omega-3, omega-6, and omega-9 (the famous oleic acid), natural antioxidants, vitamins A and E, and various classes of flavonoids.

• Krill oil is rich in polyunsaturated fatty acids omega 3 EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), which are structural components of the human brain, the cerebral cortex, the skin and the retina.

DHAs play a key structural and functional role in brain health, and their natural levels decrease during the aging process. An omega-3 supplement with DHA helps maintain brain health and active mental acuity.

-Women's health:

Menstrual health encompasses various bodily systems, including hormonal balance, mood and energy patterns, and physiological symptoms. Most women experience various natural symptoms just a few days before their menstrual cycles begin. Changes in the balance of estrogen and progesterone can lead to mood swings, swelling, breast tenderness, and compromised responses to stress.

Containing phospholipids known to support healthy hormone production, krill oil can support a balanced menstrual cycle. In a randomized study, Krill oil was found to be superior to fish oil in balancing the natural symptoms associated with the menstrual cycle, such as breast tenderness, stress, and irritability.

Krill oil is a supplement that is rapidly gaining popularity as an alternative to omega 3 pills, the benefits of which are widely questioned, which have recently been discussed in Sport and Life. Krill, a small type of crustacean consumed by whales, penguins, and other marine creatures. Like fish oil, it is a source of DHA and EPA acids, types of healthy fats found only in marine sources. We inform you about the benefits that krill oil potentially has and that science supports.

-Other benefits:

• Increases the feeling of well-being, improves mood and is associated with a lower incidence of depression.

• It can be helpful in treating attention deficit hyperactivity disorder (ADHD).

• Relieves symptoms of premenstrual syndrome. For example, cramps, irritability and tenderness in the breasts.


-Improves blood lipids and heart health.


Research has shown that fish oil can improve blood lipid levels, and krill oil also appears to be effective. Studies have shown that it can be particularly effective in reducing triglycerides and other fats in the blood, both in obese patients and in young adults. This is a great benefit in preventing atheroma plaques, which have a great influence on myocardial infarctions.

When it comes to cardiovascular health, another study compared krill oil with olive oil and found that krill oil significantly improved insulin resistance scores as well as the function of the lining of blood vessels.

-Krill oil contains phospholipids:

What are phospholipids?

Phospholipids are fats that form the membrane of every cell in our body. They consist of a phosphate head and two lipid tails where, in the case of Krill oil, omega-3 is found. They are called "cell guardians" because they form the important barrier that regulates cell function.

And what are they for?

Phospholipids are important to the structure of the cell because they help maintain its stability and integrity. We can consider phospholipids as the most important bricks to properly build a house. Its omega-3 content is very important, since these are lipids that provide flexibility to the membranes.

In addition to being structurally important to cells, they are tasked with transporting and inserting long-chain omega-3s, EPA, and DHA into cell membranes through the blood so that they can maximize the benefits of omega-3s.

What is special about Antarctic krill oil?

Antarctic krill oil has a very important characteristic: the long-chain omega-3s from krill oil are linked to phospholipids and therefore have better incorporation into various organs, such as the brain, heart and eyes, than omega-3 sources in the form of triglycerides. .

Compared to other sources of omega-3s, krill is highly prized because its key fatty acids are more bioavailable. The first and most notable benefit consumers find is that a lower dose is required. Another notable benefit is the absence of reflux because krill's omega-3s mix with the stomach contents, avoiding unpleasant digestive problems, frequently associated with other marine sources of omega-3s.

Does krill oil contain zinc?

Some commercial brands add zinc to their formula with Krill oil, which ends up adding multiple benefits.

Zinc is an important trace mineral that people need to stay healthy. Among the trace elements, this element is only surpassed by iron due to its concentration in the body.


Zinc is found in cells throughout the body. The body's defense system (immune system) needs to function properly. It participates in the division and growth of cells, as well as in wound healing and carbohydrate metabolism.

Zinc is also necessary for the senses of smell and taste. During pregnancy, lactation, and childhood, the body needs zinc to grow and develop properly. Zinc also increases the effect of insulin.

Information from an expert review of zinc supplements showed that:

• When taken for at least 5 months, zinc can reduce the risk of getting sick from the common cold.

• Starting to take zinc supplements within 24 hours of the onset of cold symptoms can shorten their duration and make them less severe. However, it is not necessary to consume supplements beyond the recommended daily intake.

Can I take krill oil with glucosamine?

Yes, you can take Krill Oil with Glucosamine, as there is no evidence that the interaction between the two elements causes an adverse reaction to the body.

Glucosamine sulfate is a natural substance present in the body. It is present in the fluid that surrounds the joints. Glucosamine also exists elsewhere in nature. For example, the glucosamine used in dietary supplements is often obtained from the shells of shellfish. Glucosamine sulfate is an organic substance found in the body. It can also be synthesized in the laboratory.

There are different forms of glucosamine, including glucosamine sulfate, glucosamine hydrochloride, and acetylated glucosamine. These different chemicals have some similarities, but may not have the same effects when taken as a dietary supplement. Most of the scientific research done on glucosamine has been done on glucosamine sulfate, which can be safely consumed in conjunction with Krill oil.

Glucosamine dietary supplements often contain other additional ingredients. Often these additional ingredients are chondroitin sulfate, methylsulfonylmethane (MSM), or shark cartilage. Some people think that these combinations work better than taking glucosamine sulfate alone. So far, researchers have found no evidence that combining these additional ingredients with glucosamine has any greater benefits.

Glucosamine sulfate is most commonly indicated for osteoarthritis. It is also used to treat many other conditions, but there is no good scientific evidence to support these uses.

-How does it work?

The body uses glucosamine to produce a variety of other substances that are involved in the formation of tendons, ligaments, cartilage, and the thick fluid that surrounds the joints.

The joints are cushioned by the fluid and cartilage that surrounds them. In some people with osteoarthritis, the cartilage breaks down and becomes thinner. This results in more friction, pain, and stiffness in the joints. Researchers believe that taking glucosamine supplements can increase the amount of cartilage and fluid that surrounds the joint or prevent deterioration of these substances, or perhaps do both.

Some researchers think that the "sulfate" part of glucosamine sulfate is also important. The body needs sulfate to make cartilage. This is one of the reasons why researchers believe that glucosamine sulfate might work better than other forms of glucosamine, such as glucosamine hydrochloride or acetylated glucosamine. These other compounds do not contain sulfate. The combination of sulfate with Krill oil is also safe.

What do medical publications say about the health benefits of krill oil?

The conclusions of the III Course on 100% Natural Nutrition: inflammatory processes and their effects on health.

The course, which brought together more than 400 health professionals in Madrid, was attended by one of the greatest international Omega-3 experts, Dr. Clemens von Schacky, head of the Preventive Cardiology Unit at Ludwig Maximilians-University of Munich. Von Schacky is a co-author of the definition of the HS-Omega-3 Index, the standardized method of measuring the presence of Omega-3 fatty acids in the body.

According to studies by Dr. Von Schacky and other researchers, an optimal level of the HS-Omega-3 Index reduces cardiovascular risk and improves cognitive function, in addition to reducing the incidence of depression and ADHD.

The consensus among the participating experts is that cold-extracted krill oil increases the HS-Omega-3 index and, with it, the health benefits, to a greater extent than fish oil, because its two acids, fats Omega-3 essentials, eicosapentaenoic (EPA) and docosahexaenoic (DHA), are more bioavailable.

Dr. Xavier Pintó, director of the Cardiovascular Prevention Program and coordinator of the Lipids and Vascular Risks Unit at Bellvitge University Hospital, has presented a review of studies that reflects that Omega-3s in cold krill oil are very beneficial for cardiovascular health and inflammation. processes in general.

One of the reasons for these benefits is that in krill oil, EPA and DHA bind to phospholipids, unlike fish oil, Omega-3 fatty acids, which bind to triglycerides. "Krill oil is very rich in Omega-3 in the form of phospholipids, which makes it more bioavailable and with less quantity, a greater effect is achieved," says this expert. Plus, he says, it contains a carotenoid called astaxanthin that has antioxidant and anti-inflammatory properties and helps protect against degenerative diseases.

Doctor Pintó recommends its supplementation in case it does not reach the adequate levels of Omega-3, between 8% and 11%, according to the HS-Omega-3 index. In fact, he says, "the indexes of the average of the Spanish population, although higher than those of the rest of Europe, are below what is recommended." According to the latest official data available, from the Spanish Agency for Consumption, Food Safety and Nutrition, only 5% of the Spanish population reaches the recommended amounts of polyunsaturated fatty acids in the diet.

Expert comment: "It is the synergy of the nutritional components that makes this oil so beneficial for health problems as diverse as cramps and irritability associated with PMS, high cholesterol levels or joint pain in arthritis . "Dr. Tina Sampalis, professor at the Department of Experimental Surgery at the University of Montreal.

Javier Aizpiri, Neuropsychiatrist and director of the Burmuin Institute in Bilbao.

"60% of the brain is fat and 30% are phospholipids (the fats in the membranes of neurons) that help neurotransmitters in the brain to function better."


Expert comment: “Astaxanthin is a powerful antioxidant of natural origin that fights oxidative stress and has great benefits for the skin, eyesight and the cardiovascular system. It is 10 times more powerful than vitamin C; 14 times more powerful than vitamin E; and 54 times more powerful than any other beta-carotene. " Virtudes Ruíz, surgeon and expert in aesthetic medicine, member of Advanced Aesthetic Medicine at the University of Valencia.

Omega 3 fatty acids like those found in krill oil have been shown to have important anti-inflammatory functions in the body, as this study published in Digestive and Liver Disease tells us. In fact, krill oil can be even more effective in fighting inflammation than other marine sources of omega 3 because it seems to be easier for our body to use.

Do I need to store krill oil in the refrigerator?

The bottle should be stored in a cool, dry and dark place because sunlight, humidity and / or heat can deteriorate the quality of the Omega 3. It is not necessary to keep it in the refrigerator, as long as the ambient temperature does not exceed 35 degrees centigrade.

Can krill oil lower LDL?

LDL stands for low-density lipoprotein, sometimes called "bad" cholesterol because a high level of LDL leads to a build-up of cholesterol in the arteries. Which is necessary that excess LDL is eliminated, Krill oil is the perfect ally for the liver, in the task of controlling LDL levels.

-Why is krill oil so effective in lowering blood cholesterol and triglycerides?

Because krill oil, unlike other sources of Omega 3, contains phospholipids that surround EPA and DHA (Omega 3) and make their absorption much more efficient and faster. As a result, in a short time and at low doses, krill oil markedly lowers blood cholesterol and triglycerides.

Krill oil can change the color of urine?

Yes, because it contains elements of astaxanthin, a carotenoid antioxidant, which can change the color of urine for an orange tone, and this is not pathological.

Beta-carotenes are essential nutrients, present in a variety of fruits and vegetables that have the common denominator of color, which ranges from yellow and orange to deep red, although it is also present in some vegetables such as chard and spinach. It is a fat-soluble substance, that is, soluble in fatty bodies and that belongs to the carotenoid family, although they are also composed of retinol, retinal and retinoic acid. It is considered a provitamin A.

Why is krill oil good for rheumatoid arthritis?

Supplements with a highly digestible omega-3, such as krill oil, can help keep omega-6s and omega-3s in balance. This, in turn, provides strong support for joint comfort and range of motion. Krill oil has successfully maintained normal levels of plasma reactive protein C (a key marker for joint and heart health).

-Helps fight inflammation.


Because krill oil appears to help reduce inflammation, it can also improve arthritis and joint pain symptoms, which are often a consequence of the inflammation itself. Krill oil has been found to significantly reduce stiffness, functional decline, and pain in patients with rheumatoid arthritis or osteoarthritis. While more studies are required to support these results, krill oil appears to have good potential as a complementary treatment for arthritis and joint pain.

Who would benefit from consuming krill oil?

People with a history of:

-Existing heart disease or a family history of heart problems.

-History of age-related macular degeneration.

-Dry eye syndrome.

-High cholesterol and triglycerides.

-Atherosclerosis (plaques of atheromas within the arteries).

-Difficulties in concentration or decrease in memory.

-People who want to keep their skin healthy, smooth and flawless.

-Arthritis, osteoarthritis and sports injuries that occur with inflammation.

-Inflammatory bowel disease (ulcerative colitis and Crohn's disease).

-High blood pressure.

-Children with attention deficit hyperactivity disorder or certain learning difficulties.

What are the differences between Omega 3 in krill oil and Omega 3 in chia and flax?

Chia and flax oils are excellent sources of Omega 3, but they do not contain EPA or DHA. The Omega 3 in chia and flax is alpha-linolenic fatty acid, which does not provide the brain, vision, and skincare benefits of EPA and DHA. Furthermore, the Omega 3 of these seeds does not appear together with the phospholipids that improve their absorption.

-What are the benefits of krill oil compared to cod liver oil?

Krill oil has a higher bioavailability than fish oils (including cod liver oil) thanks to the presence of phospholipids that facilitate its assimilation in the human body. In this way, its anti-inflammatory, cardioprotective and lipid-lowering effects are more pronounced.

On the other hand, the astaxanthin from krill oil makes it the ideal supplement to take care of eyesight and skin. Unlike fish oil, krill oil is used to combat photoaging of the skin (due to sun damage), which is characterized by the premature appearance of blemishes, wrinkles and expression lines.

What contraindications does Krill oil have?


Krill oil is a product approved by the FDA (United States Food and Drug Administration), making it safe for health. It is only contraindicated in some very concrete and specific situations, as you can see below in the following list:

-Seafood allergy.

-Clotting disorders because it could cause bleeding.

-Presence of chronic diseases (heart, kidney, liver, endocrine). The person should consult their GP before starting to take krill oil.

-Orlistat consumption. This medicine inhibits the absorption of fats and, as a consequence, krill oil will be eliminated in the faeces.

Krill oil drops are sometimes used for the topical treatment of dry eye syndrome, but this is an external use ophthalmic product.


1. Tou JC, Jaczynski J, Chen YC (2007). Krill for human consumption: nutritional value and potential health benefits. Nutr Rev 65: 63–77.

2. Balk EM, Lichtenstein AH, Chung M, Kupelnick B, Chew P, Lau J (2006). Effects of omega-3 fatty acids on serum markers of cardiovascular disease risk: a systematic review. Atherosclerosis 189: 19–30.

3. Harris WS (1997). n-3 fatty acids and serum lipoproteins: human studies. Am J Clin Nutr 65: 1645S – 1654S.

4. Stine M. Ulven; Bente Kirkhus; Amandine Lamglait; Samar Basu; Elisabeth Elind; Trond Haider; Kjetil Berge; Hogne Vik; Jan I. Pedersen. (2011). Metabolic Effects of Krill Oil are Essentially Similar to Those of Fish Oil but at Lower Dose of EPA and DHA, in Healthy Volunteers. Lipids, DOI 10.1007 / s11745-010-3490-4, 37–45.

5. Maki, et. al., LA SUPLEMENTACIÓN DE ACEITE DE KRILL AUMENTA las concentraciones plasmáticas de ÁCIDOS EICOSAPENTAENOICOS Y DOCOSAHEXAE-NOIC EN HOMBRES Y MUJERES GORDOS Y OBESOS. Investigación nutricional, 609-615, 2019.



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