best omega 3 capsules

Omega 3 Capsules: Test & Reviews

Author: Anne Jonson

Diet & Nutrition Expert

Welcome to our great Omega 3 capsule test. Here we present you all of the Omega 3 capsules that we have tested. We have compiled detailed background information for you.

We want to make the purchase decision easier for you and help you to find the best omega 3 capsules for you. You can also find answers to frequently asked questions in our guide.

You will find important information on this page that you should definitely pay attention to if you want to buy Omega 3 capsules.

  • Essential fatty acids cannot be produced by your body and must therefore be supplied through food or nutritional supplements. In particular, by avoiding fish, it becomes difficult to meet the necessary demand.
  • The optimal intake can have numerous advantages: from a lower cholesterol level and reduced menstrual problems to anti-inflammatory effects in diseases such as rheumatism, neurodermatitis or arthritis.
  • A distinction is made between fish oil, krill oil and algae oil capsules.

Best Omega 3 Capsules

Best fish oil capsules

These Omega3 capsules from Feel Natural are a high-dose preparation in a value pack with 365 capsules. This pack is suitable for long-term use. In addition, this company obtains its fish oil from sustainable fishing and is of high quality.

Best krill oil capsules

This model is the test winner of the krill oil capsules and is pharmacy quality. In addition, you can take these capsules without fear of a fishy taste.

This product is in a higher price category. If you prefer omega 3 capsules made from krill oil, these are a very good choice.

Best algae oil capsules

These Omega 3 capsules are an inexpensive vegan quality product. These are capsules that are free of any impurities. This product also does not cause any annoying burping or a fishy taste in the mouth.

If you are looking for a vegan variant of the Omega 3 capsules, then you are well advised with this product.

Best omega 3 capsules for kids

This product offers Omega 3 fatty acids for the little world citizens. They are characterized by their particularly small capsules and the lack of a fishy taste. Furthermore, they are free from harmful substances, such as Heavy metals.

So if you are looking for a suitable preparation for your children, this could be a suitable one for you.

Questions to Consider Before Buying Omega 3 Capsules

What are Omega 3 Fatty Acids?

Although the term omega-3 fatty acids sounds daunting at first, it is extremely healthy and important fatty acids for the human metabolism.

In addition to their function as energy donors, they are essential for the production of hormone-like substances, which significantly support processes such as wound healing, blood clotting or inflammation. They are also an important part of the cell membrane.

The most important omega 3 fatty acids are:

  • Eicosapentaenoic acid (EPA)
  • Docosahexaenoic acid (DHA)
  • Alpha-linolenic acid (ALA)

Eicosapentaenoic acid (EPA)

EPA also belongs to the family of essential unsaturated fatty acids. Above all, it supports our body in the formation of molecules that weaken inflammatory processes. Often these inflammatory processes can trigger diabetes or autoimmune diseases.

The omega 3 fatty acid EPA is particularly found in the following fatty sea fish:

  • Sardine
  • Herring
  • Salmon

Docosahexaenoic acid (DHA)

The essential fatty acid DHA is an important component of cell membranes, especially in nerve cells. So it is increasingly concentrated in the brain and retina.

DHA plays a major role in brain development and the maintenance of eyesight. In contrast to EPA, DHA has the ability to change both blood pressure and heart rate.

DHA can be absorbed by our body through food, similar to EPA, through the oil of fatty cold water fish such as mackerel, salmon, eel or herring.

Alpha-linolenic acid (ALA)

In contrast to the two previous fatty acids, the long-chain fatty acid ALA is of vegetable origin. In order to be able to synthesize EPA and DHA in the body, the body needs the supply of ALA.

Due to the fact that this transformation process in the body is associated with a high expenditure of energy, this rarely happens. If ALA is not converted into EPA and DHA in the body, these fatty acids remain in the body as an energy store.

The following foods are particularly rich in alpha-linolenic acid:

  • vegetable oils such as hemp oil, linseed oil, rapeseed oil or soybean oil, with linseed oil having the highest concentration
  • Green leafy vegetables
  • Walnuts
  • Wheat germ
  • Linseed
  • Wild berries

What is the difference to Omega 6 and Omega 9?

The interaction with omega 6 fatty acids is particularly important for an optimal supply of fatty acids. Similar to the omega 3 fatty acids, omega 6 cannot be produced by our body.
Both forms of unsaturated fatty acids differ in terms of their chemical composition. If both variants have several double bonds, it occurs on the third carbon arm for omega 3 fatty acids and on the sixth carbon arm for omega 6 fatty acids.

It is important to maintain a ratio of 1:1 for these fatty acids if possible. At this optimal ratio, the body can produce anti-inflammatory hormones. However, if they are in an imbalance, more inflammatory hormones are produced.

Which ingredients are contained in Omega 3 capsules?

Most of these capsules are filled with oil. Most products contain fish oil, and some are fortified with vegetable oil (ALA). These can be filled with linseed oil or with microalgae oil rich in EPA and DHA.

Furthermore, not only the oil content is important, but also additives such as vitamin E or iodine. The capsules can also be enriched with vitamin E to support the antioxidant effect of the fatty acids.

The vitamin prevents the omega 3 fatty acids in the body from “spoiling” when they come into contact with oxygen.

What are the effects of Omega 3 capsules?

The spectrum of action of Omega 3 capsules is quite wide. According to our research, protecting cells against premature aging is one of their most important properties.

Omega 3 fatty acids also have a strong antioxidant effect. So they can promote an improvement of the blood flow through the reduced deposition in blood vessels.

Due to the anti-inflammatory effect of these substances, they can have a positive effect on inflammatory diseases such as neurodermatitis, rheumatism, arthritis and others.

When does it make sense to take Omega 3 capsules?

If a deficiency of omega 3 has already been determined in your body, taking omega 3 capsules is an obvious choice. However, you can counteract the first signs of a deficiency. Especially if you are aware of a diet that is poor in omega 3, you could compensate for this by taking omega 3 capsules as a dietary supplement.

Who should take Omega 3 capsules?

In particular, people with an increased need for omega 3 fatty acids are recommended to take omega 3 capsules. These groups of people include the following:

  • Pregnant and breastfeeding women
  • Competitive athlete
  • People who suffer from cardiovascular problems
  • People who suffer from inflammatory diseases such as neurodermatitis, rheumatism or the like

Nevertheless, all groups of people can take this product. Ingestion can be recommended, especially at the first signs of deficiency symptoms.

How are deficiency symptoms noticeable?

A lack of omega 3 fatty acids can become noticeable in the body through a diverse interplay of symptoms. However, these are often perceived as a reduced well-being:

  • Sleep disorder
  • Stunted growth
  • Difficulty concentrating
  • Dry skin
  • Body aches
  • Brittle nails
  • Photosensitivity

Since these symptoms can be of diverse nature, a deficiency symptom is not infrequently recognized late. It is therefore particularly important to thoroughly examine your eating habits. If necessary, the diet should be adjusted in combination with food supplements.

Are Omega 3 capsules suitable for children?

Especially in the growth phases, parents worry about whether their children are supplied with all the important nutrients in order to guarantee the best possible development.

Nevertheless, it is known that fish and vegetables are often not the favorite dishes of the little ones. And: favorites such as pasta or ready-made meals are very low in omega 3 fatty acids.

But especially for the early development of the brain, the unsaturated fatty acids are among the essential building blocks, so that taking omega 3 capsules can be considered quite useful. By designing the packaging, the manufacturers make it immediately clear that they are suitable for children.

Can Omega 3 capsules support muscle building?

Men in particular strive for increased muscle building. This is often tried to promote using various products. It is not necessary to use prohibited preparations. Omega 3 capsules can also achieve success in fitness. However, this is only possible with simultaneous strength training.

Both DHA and EPA ensure that insulin is better absorbed from adipose tissue. At the same time, muscle breakdown is prevented.

This breaks down fat and not muscle tissue, especially when dieting. In addition, the intake of omega 3 fatty acids supports regeneration after training due to their anti-inflammatory effects.

What should be considered when taking?

In general, it can be said that Omega 3 capsules are dietary supplements and not drugs. Although not infrequently promised something else, they are not suitable for curing diseases such as breast cancer or arthritis.

For this reason it is forbidden by law to advertise such healing promises. These dietary supplements are only there to eliminate symptoms of deficiency symptoms or to prevent them.

Compliance with the recommended daily dose of the European Food Commission is of great importance. This recommends a daily dose of 5mg for combination preparations of EPA and DHA, and a maximum dose of 1.8mg for EPA products alone.

If there is an overdose, nausea or even vomiting can occur. In worse cases, the immune system is more susceptible or the blood flow changes.

Permanent EPA overdose can cause high cholesterol levels. Possible interactions with other drugs such as the pill or similar should be discussed with a doctor.

What alternatives to Omega 3 are available?

If you decide against taking Omega 3 capsules, you can also replenish your supply with the help of various foods.

If you do not consume fish in your diet, for example because you are a vegetarian or vegan, you should pay particular attention to the intake of omega 3 fatty acids. This excludes a very large EPA and DHA supplier from your menu.

You can use plant-based foods as vegetarian or vegan options. These include oils such as linseed oil, rice oil or soybean oil. You can also get the essential fatty acids from walnuts or almonds.

What types of Omega 3 Capsules are there and which one is right for you?

In general, the Omega 3 capsules can be divided into three different types, all of which have both advantages and disadvantages:

  • Fish oil capsules
  • Krill oil
  • Algae oil capsule

The way you ultimately choose depends largely on your own needs. In the following we will introduce you to the three types and show you the advantages and disadvantages of each group of preparations.

Fish oil capsules: Advantages & Disadvantages

The fish oil-filled capsules are the most common. Due to its established inventory, some scientific studies on ingredients and modes of action have already been carried out. With these medical effects and advantages can be proven.

For example, studies have shown that fish oil can have a positive effect in the early stages of cardiovascular complaints.

In addition, in contrast to the other two types, this variant is the cheapest. All the fatty acids contained can also be used directly by the body.

However, this option is not suitable for vegetarians or vegans. When buying, you should also bear in mind that the products could be contaminated with heavy metals.

Krill oil: Advantages & Disadvantages

Krill oil is extracted from the Antarctic cancer, also known as “krill”. Not only omega 3 but also omega 6 fatty acids, vitamins A and E are fed from them.

Krill oil not only has a positive effect on cholesterol levels, it can also help with menstrual cramps.

In contrast to the fish oil capsules, Omega 3 capsules with krill oil are much more expensive. In addition, the different composition of krill oil compared to fish oil ensures less belching with a fishy aftertaste.

Since the krill oil capsules are still relatively new on the market, there are currently hardly any scientific studies on the effectiveness of these preparations. In addition, the EPA and DHA concentration is lower than the fish oil capsules.


Algae oil capsule: Advantages & Disadvantages

The capsules filled with algae oil are the vegan alternative to krill oil and fish oil capsules. Not only are no fish products used in the production, but animal gelatine is also not used.

The vegan Omega 3 capsule has the same advantages as the non-vegan competitors. However, it also has some disadvantages. On the one hand, they are significantly more expensive than the fish oil capsule, and on the other hand, they only offer ALA as a fatty acid.

Purchase criteria: Use these factors to compare Omega 3 Capsules

In the following, the criteria will be presented, based on which you can choose the right one for you from a variety of different omega 3 capsules:

The aspects by which you can compare the oily capsules include the following:

  • Contents
  • Price-performance ratio
  • Shelf life and storage
  • Vegan
  • Benefits

In the following you can read what is hidden behind the criteria and what role the property can play in your decision.


To get a little closer to the decision, the first thing you can ask yourself is how long you plan to take the dietary supplement. The duration and type of therapy can determine the size of the pack.

If the intake of essential fatty acids is more temporary, you could opt for a smaller pack. For long-term therapy, it makes sense to purchase a large pack.

Price-performance ratio

Fish oil capsules are available from 10 to 15 dollars for 120 capsules. In order to ensure the fish oil is of good quality, you should firstly invest a little more money and secondly check the specified quality seals.

The vegan algae oil capsules are much more expensive with a minimum price of 20 dollars for 120 capsules. The krill oil filled capsules are in a similar price range.

Shelf life and storage

If fish oil is stored in a dark and cool place, it has a longer shelf life. This also applies to the fish oil capsules. If this storage instruction is followed, they can be kept for up to 2 years.

Krill oil has the longest shelf life. This long shelf life is due to the reduced oxidation.

In contrast to fish and krill oil, algae oil can be stored at room temperature. Here, too, you should store the product in the dark and protect it from direct sunlight.

If you do not follow these instructions, the capsules can go rancid, so that they can lose their effectiveness on the one hand and cause undesirable side effects on the other.


As already described above, the algae capsules are suitable for vegans and vegetarians, thanks to the use of vegetable oils and the omission of gelatin.

Both krill oil and fish oil can be consumed by anyone else.


The lack of belching with a fishy aftertaste in krill oil and algae oil capsules can be identified as a particularly great advantage. In addition, a smaller capsule can make swallowing easier and more comfortable.

Facts about omega 3

How do I dose the Omega 3 capsules correctly?

The daily dose of omega 3 fatty acids depends on your symptoms. The dosage should be made dependent on the goal of taking. The package insert for the preparation with the content of DHA and EPA must be observed.

In the case of symptom-free people, the following quantities apply as required quantities:

  • Adults – 0.25-0.3g
  • Infants – 0.1g
  • Children and adolescents – 0.25g
  • Pregnant and breastfeeding women – 0.45g
  • Competitive athletes – 1-2g

In general, a daily dose of 3mg should not be exceeded. In addition to taking the Omega 3 capsules, it is important to monitor your diet.

How do I take the capsules correctly?

It is best to take the Omega 3 capsules at two different times a day, which on the one hand continuously supplies your body with Omega 3 and on the other improves absorption.

The capsules can be taken for lunch and dinner, for example. However, a snack can also be used for taking. If you take the capsules with meals, you can avoid side effects such as bad breath, belching, or the rare occurrence of diarrhea or nausea.

What side effects could I experience?

Side effects can arise from an overdose or from intolerance. The most common side effects include the following:

  • fishy aftertaste as the first sign
  • Nausea
  • Diarrhea
  • Weakened immune system (especially in the elderly)
  • Excessively thinned blood
  • Increase in cholesterol levels
  • Heartburn
  • Fish-flavored belching
    can exacerbate manic-depressive moods and epilepsy

There may also be incompatibilities due to impurities in the preparations. You should absolutely pay attention to the clear information on the composition.

Contaminated products mainly occurred in connection with mercury. Therefore, when choosing products, make sure they are of high quality and include a detailed list of ingredients.

What interactions with other drugs can occur?

Possible interactions should be taken into account, particularly when taking blood-thinning and anticoagulant medication. These effects may be intensified by the Omega 3 capsules.

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