Effects of omega-3s—what is the best omega-3 capsule?
If you do not get enough omega-3s from foods such as oily fish in your diet, you may want to take an omega-3 supplement. Omega-3 supplements come in many forms, from traditional fish oil to mammal oil.
Omega-3 fatty acids are very important for your health.
Eating whole foods rich in omega-3 fatty acids, such as oily fish, is the best way to get enough.
If you do not eat much oily fish, you may want to consider taking a supplement. Hundreds of types of omega-3 supplements are available. Not all of them have the same health benefits. This detailed guide explains everything you need to know about omega-3 supplements.
Omega-3s exist in several forms Fish oil exists in both natural and processed forms. Processing can affect the form of the fatty acids. This is important because some forms are absorbed better than others.
- Fish: In whole fish, omega-3 fatty acids are present as free fatty acids, phospholipids, and triglycerides.
- Fish oil: In traditional fish oils, omega-3 fatty acids are mostly present in the form of triglycerides.
- Processed fish oil: When fish oils are refined, food industry chemists are often converted into ethyl esters, allowing them to adjust the concentration of DHA and EPA in the oil.
- Reformed triglycerides: The ethyl esters in processed fish oils can be converted back into triglycerides, which are then called “reformed” triglycerides.
SUMMARYOmega-3s occur in several forms, most commonly as triglycerides. Some more highly processed fish oils may contain omega-3 ethyl esters, which apparently are not absorbed as well.
Natural fish oil
This oil comes from the tissue of oily fish, mostly in the form of triglycerides. It is the closest to actual fish.
Natural fish oil contains many important nutrients..
The amount of omega-3s in fish oil—including EPA and DHA—ranges from 18–31%, but this amount varies by fish species. Natural fish oil also contains vitamins A and D..
Salmon, sardines, herring, menhaden, and cod liver are among the most common sources of natural fish oil. These oils are available in capsules or in liquid form..
SUMMARY Natural fish oil contains the omega-3 fatty acids EPA and DHA. It also provides vitamins A and D.
Processed fish oil
Processed fish oil is purified and/or concentrated. It consists of ethyl esters or triglycerides.
Purification removes contaminants from the oil, such as mercury and PCBs. Concentrating the oil can also increase its EPA and DHA levels. Some oils may contain as much as 50–90% pure EPA and/or DHA.
Processed fish oils account for the vast majority of the fish oil market because they are inexpensive and are generally sold in capsules, which are popular with consumers.
Processed fish oil is not absorbed as well by your body as natural fish oil when it is in ethyl ester form. Ethyl esters appear to be more prone to oxidation and rancidity than triglycerides.
However, some manufacturers process the oil further to convert it back into a synthetic triglyceride form, which is well absorbed.
These oils are called reformed (or re-esterified) triglycerides. They are the most expensive fish oil supplements and account for only a small percentage of the market.
SUMMARY Processed fish oils are purified and/or concentrated. They are more susceptible to oxidation and are less well absorbed by the body unless they are converted back into triglycerides through a synthetic process.
Krill oil
Krill oil is obtained from Antarctic krill, a small shrimp-like animal. Krill oil contains omega-3 in both triglyceride and phospholipid forms.
Numerous studies have shown that omega-3 is absorbed just as well from the phospholipids in krill oil as from the triglycerides in fish oil—and sometimes even better.
Krill oil is highly resistant to oxidation because it naturally contains a powerful antioxidant, astaxanthin.
Moreover, krill are very small and have short lifespans, so they do not accumulate many contaminants during their lives. Therefore, their oil does not need to be purified and is rarely found in ethyl ester form.
SUMMARY Krill oil naturally contains few contaminants and contains a powerful antioxidant. It provides omega-3 in both triglyceride and phospholipid forms, which are well absorbed.
Green-lipped mussel oil
The green-lipped mussel is native to New Zealand, and its oil is generally present in the form of triglycerides and free fatty acids.
In addition to EPA and DHA, it also contains trace amounts of eicosatetraenoic acid (ETA). This rare omega-3 fatty acid may be even more effective at reducing inflammation than other omega-3 fatty acids.
Consuming green-lipped mussel oil instead of fish oil can be considered environmentally friendly.
SUMMARY Green-lipped mussel oil is another source of omega-3 fatty acids. This mussel contains several forms of omega-3 and is considered an environmentally friendly choice.
Mammal oil
Omega-3 oil derived from mammals is made from seal fat and is present in the form of natural triglycerides.
In addition to EPA and DHA, it also contains a relatively large amount of docosapentaenoic acid (DPA), an omega-3 fatty acid with numerous potential health benefits. Omega-3 oil derived from mammals also has an exceptionally low omega-6 content.
SUMMARY Mammalian oil is also a good source of DPA in triglyceride form, in addition to EPA and DHA.
ALA oil ALA stands for alpha-linolenic acid. It is the plant-based form of omega-3.
It is found in particularly high amounts in flaxseeds, chia seeds, and hemp seeds. The body can convert it into EPA or DHA, but this conversion process is inefficient. Most plant oils also contain more omega-6 than omega-3.
SUMMARY ALA oils are made from plant sources and contain both omega-3 and omega-6. They do not contain EPA or DHA, the types of omega-3 that are active in the body.
Algal oil
Marine algae, particularly microalgae, are another triglyceride source of EPA and DHA.
In fact, the EPA and DHA in fish originate from algae. Small fish consume them, and they then move up the food chain.
Studies show that algal oil is even more concentrated in omega-3 than fish oil, particularly in DHA. It is an especially good source for vegetarians and vegans.
It may also contain important minerals such as iodine. Algal oil is also considered environmentally friendly. It contains no contaminants, such as heavy metals, making it a sustainable, healthy option.
SUMMARY Microalgae are a plant-based source of EPA and DHA in triglyceride form. This oil is considered an environmentally friendly and excellent source of omega-3 for vegetarians and vegans.
Omega-3 capsule
Omega-3 oils are generally found in capsules or soft gels.
These are popular with consumers because they have no taste and are easy to swallow.
Capsules are generally made from a soft gelatin layer, and many manufacturers also use an enteric coating.
At the same time, it can also mask the foul smell of rancid fish oil.
If you take omega-3 capsules, it is worth opening one from time to time and smelling it to make sure it has not gone rancid.
SUMMARY Capsules are a popular way to take omega-3. However, capsules can mask the smell of rancid oil, so it is worth opening one from time to time.
What to Look for When Buying Supplements When buying an omega-3 supplement, always read the label carefully.
Also check the following:
- The type of omega-3. Many omega-3 supplements often contain little or no EPA and DHA—the most important types of omega-3. Make sure the supplement contains them.
- The amount of omega-3. The front of a dietary supplement may state that it contains 1,000 mg of fish oil per capsule. However, on the back, you may read that the EPA and DHA total only 320 mg.
- The form of omega-3. For better absorption, look for FFA (free fatty acids), TG, rTG (triglycerides and re-esterified triglycerides), and PL (phospholipids) forms rather than EE (ethyl esters).
- Purity and authenticity. Try to buy products that either meet the GOED purity standard or bear a third-party seal. These labels indicate that the products are safe and contain what they claim to.
- Freshness. Omega-3s are prone to rancidity. Once they spoil, they develop a foul odor and become less effective or may even be harmful. Always check the date, smell the product, and see whether it contains an antioxidant such as vitamin E.
- Sustainability. Try to buy fish oil certified by the MSC, the Environmental Defense Fund, or a similar organization. Small, short-lived fish are generally more sustainable.
SUMMARY Check the type and amount of omega-3 in the product. It should contain an adequate amount of EPA and DHA—and preferably an antioxidant to prevent rancidity.
Which omega-3 supplement is best? A regular fish oil supplement is probably the best choice for most people who want to improve their well-being.
However, keep in mind that natural fish oil generally consists of no more than 30% EPA and DHA, which means that 70% consists of other fats.
You can also buy supplements that contain higher concentrations of omega-3. The proportion of EPA and DHA can be as high as 90%. For best results, look for brands that contain omega-3s as free fatty acids. Triglycerides or phospholipids are also good.
SUMMARY A regular fish oil supplement is probably sufficient for most people who want to optimize their health. If you need high doses, take a supplement containing concentrated omega-3.
For most people, a regular fish oil supplement is probably sufficient.
However, make sure that the supplement contains what it claims to, and pay particular attention to the EPA and DHA content.
EPA and DHA are most commonly found in animal-based omega-3 products. Vegetarian versions also exist, but they generally contain only ALA. One exception is algae oil, which is an excellent source of high-quality omega-3 and is suitable for everyone, including vegans.
It’s best to take these supplements with a meal containing fat, as fat increases the absorption of omega-3s.
Ultimately, omega-3 may be one of the most beneficial supplements you can take. Just make sure you choose wisely.
Source: www.healthline.com
