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Omega-3 Fatty Acids

Omega-3 Fatty Acids & the Important Role They Play

Omega-3 Fatty Acids significance in fresh food and dietary supplements is recognized

What is omega-3 fatty acids?


Polyunsaturated fats called omega-3 fatty acids serve important roles in your body. The amount of omega-3s essential for living is not produced by your body. As a result, omega-3 fatty acids are important nutrients that must be obtained through diet.

The 3 primary omega-3 fatty acids are alpha-linolenic acid (ALA), eicosatetraenoic acid (EPA), and docosahexaenoic acid (DHA). To be extra clear, plant oils such as flaxseed, soybean, and canola oils, are the primary sources of ALA. Fish and other seafood include DHA and EPA.

For instance, fatty fish (such as salmon, tuna, and trout) and shellfish (such as crab, mussels, and oysters) are good sources of the omega-3 fatty acids EPA and DHA in seafood. 

We can’t deny there are other meals that contain ALA, a specific kind of omega-3 found in other vegetable oils (including canola and soy). 




Omega-3 dietary supplements are also available; for example, fish oil supplements contain EPA and DHA, while flaxseed oil supplements provide ALA. One significant advantage is that it can help decrease your triglycerides.

There is some evidence that eating seafood is good for your health. The health advantages of omega-3 dietary supplements are not well understood.

Fish oil, krill oil, cod liver oil, and algal oil (a vegetarian form that comes from algae) are all omega-3 nutrition supplements. They offer a variety of omega-3 levels and formulations.


What are fatty acids?

  • Differences

Saturated fat and unsaturated fat are the two main kinds of fatty acids. Unsaturated fat is broken down further into polyunsaturated fat and monounsaturated fat. These are typical words on nutrition labels.

Fatty acids are chemical molecules made up of carbon, oxygen, and hydrogen atoms linked together in a chain. Carbon atoms form the backbone of the chain, with oxygen and hydrogen atoms latching on to available spots.

A saturated fat can no longer occupy any spaces. The only available space is for a monounsaturated fat. A polyunsaturated fat has a number of openings. Saturated fats are commonly referred to as “unhealthy” fats since they raise your risk of ailments such as heart disease and stroke. Unsaturated fats (polyunsaturated and monounsaturated) are regarded “good” or “healthy” fats because, when consumed in moderation, they promote heart health.

As a type of polyunsaturated fat, omega-3s are a better option to saturated fat in your diet.


  • Benefits

Omega-3 fatty acids assist all of your body’s cells function properly. They’re an important aspect of your cell membranes, providing structure and facilitating cell connections. 

While omega-3 fatty acids are essential for all of your cells, they are especially abundant in the cells of your eyes and brain.

Omega-3 fatty acids give your body with energy (calories) and promote the health of numerous physiological systems. Your cardiovascular and endocrine systems are examples of this.

Omega-3 fatty acids are essential nutrients that must be received from food. Your body can convert part of the ALA you consume into EPA and, eventually, DHA. However, this approach only yields a tiny amount of EPA and DHA. As a result, enough dietary sources of EPA and DHA (such as fish) are essential.


What omega-3 is good for?

  • Cardiovascular

Omega-3 fatty acids have numerous possible cardiovascular health advantages. One significant advantage is that they can lower your triglyceride levels.

Hypertriglyceridemia (high triglycerides in the blood) raises the risk of atherosclerosis, which raises the risk of heart disease and stroke. As a result, keeping triglyceride levels under control is crucial. 

Furthermore, omega-3s may benefit you by increasing HDL (good) cholesterol and decreasing blood pressure.

According to certain research, omega-3 fatty acids may reduce the risk of:

  • CVD cardiovascular disease.
  • Clots form in the blood


  • Other good health benefits

Aside from heart health, omega-3 fatty acids may help lower your chance of developing Alzheimer’s disease and dementia.


  • Pregnancy

Consuming above 200 to 280 grams of fish and other seafood each week during pregnancy and breastfeeding may benefit your baby’s health.

It is crucial to choose fish high in EPA and DHA yet low in mercury. Examples include salmon, herring, sardines, and trout. It is unknown whether taking EPA and DHA dietary supplements during pregnancy or breastfeeding has any influence on the health or development of the infant. 

On the other hand, some research suggests that taking these supplements may raise a baby’s birth weight and length of stay in the womb, both of which may be advantageous. 

By the way, DHA is found in breast milk. DHA is also found in the majority of commercial baby formulae, so it’s great for babies’ brain and other organs development.


  • Cancer prevention

Some research suggests that those who consume more omega-3 fatty acids from meals and dietary supplements may have a lower chance of developing breast cancer and maybe colorectal cancer. 

Nevertheless, a big clinical investigation discovered that omega-3 supplements had no effect on the overall risk of cancer or the risk of breast, prostate, or colorectal cancer. 

Other clinical trials are in underway to determine whether omega-3 fatty acids affect cancer risk.


  • Eye disease

When tears do not produce enough moisture, dry eye disease develops, causing eye discomfort and visual issues. 

Getting additional omega-3s through meals or supplements, particularly EPA and DHA, has been shown in certain trials to help improve symptoms of dry eye condition.


What foods contain omega 3?

Foods provide vitamins, minerals, dietary fiber, and other elements that are good for your health, consequently people should acquire the majority of their nutrition from food and beverages. When it is difficult to meet nutrient requirements for one or more nutrients (for instance, during particular life stages like pregnancy), fortified meals and dietary supplements might be helpful.

The finest food source of omega-3s is fish. But some plant-based diets also contain this necessary vitamin.

To wrap things up, some foods naturally contain omega-3s, while others are enriched with the fatty acid. You can eat a number of meals to acquire enough omega-3s, including the following:

  • Fish and other seafood.
  • Flaxseed, chia seeds, and walnuts.
  • Flaxseed oil, soybean oil, and canola oil.
  • Foods that have been fortified, include several kinds of babies’ formula, yoghurt, juice, milk, eggs, and soy beverages.

Let’s not forget that Omega-3 fatty acids play a significant role in the membranes that enclose each cell in your body. 

DHA levels are particularly high in sperm, brain, and retinal (eye) cells. Omega-3 fatty acids perform a variety of functions in your heart, blood vessels, lungs, immune system, and endocrine system (the network of hormone-producing glands). They also include calories, which provide energy to your body.


Is taking omega-3 daily good?

Several health advantages of omega-3 fatty acids. The best method to benefit from them is to consume fatty fish at least twice a week, but if you don’t, you might want to think about taking a supplement.

These warnings are in place for a variety of reasons. For example, omega-3 fatty acids have been linked to blood thinning or excessive bleeding in some persons.

As a result, several research advise people who are about to have surgery to discontinue taking omega-3 supplements 1-2 weeks ahead.

Another explanation is that vitamin A is deficient. In large doses, this vitamin can be harmful, and some omega-3 supplements, such as cod liver oil, are high in it.



Omega-3 fatty acids are a form of polyunsaturated fat associated with a variety of health benefits. High intake is linked to a lower risk of inflammatory diseases and depression.

Natural sources of omega-3 fatty acids include fish oil, fatty fish, flaxseed oil, and walnuts.

Because omega-3 intake in some people’s daily diets is minimal, most health professionals recommend omega-3 supplements for those who don’t obtain enough.