Omega-3 Fatty Acids – Advantages and Drawbacks

Omega-3 Fatty Acids

The body can synthesise fats from a variety of food sources. Omega-3 fatty acids, on the other hand, are essential fats for human survival. These fatty acids can only be obtained from specific foods. This incredible essential fat can be found in a variety of foods, including vegetable oil, fish, walnuts, green leafy vegetables, and so on.

Omega-3 fatty acids are required by the body. They can be found in the human system’s cell membranes. They are in charge of regulating the function of cell receptors. Hormones that aid in blood clotting, inflammation, contraction, and relaxation of the artery walls in the heart, for example, are synthesised in the body using omega-3 fatty acids.

These polyunsaturated fats are classified into three types:

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

ALA can be found in foods such as walnuts, flax seeds, and chia seeds. It is used as energy by the human body. Only certain types of fish, such as salmon, mackerel, and sardines, contain EPA and DHA. They are also commonly referred to as “Marine Omega-3s.”

Table of Contents

The Health Benefits of Omega-3 Fatty Acids

Promotes Heart Health

According to one study, 17.9 million people worldwide die each year as a result of heart disease. The main cause of cardiac diseases is an increase in triglyceride levels.

Omega-3 fatty acids are helpful in lowering the risk of cardiovascular disease, such as heart stroke. Consuming omega-3 fatty acids, according to research, lowers triglyceride levels and reduces inflammation in the body. Furthermore, it improves blood vessel function and increases blood flow.

Helps to Reduce Inflammation

Inflammation is our body’s natural response to infections in order to protect our organs from damage. However, if inflammation occurs in the absence of a prevalent infection, it can have serious consequences for your health.

Omega-3 fatty acids can aid in the reduction of cytokines in our bodies, which contribute to inflammation. According to research, including fish oil in one’s diet can significantly reduce inflammation in people with rheumatoid arthritis. Fish oil is high in omega-3 fatty acids.

Reducing Depression and Anxiety

An estimated one-fourth of the world’s population is affected by mental health disorders such as anxiety and depression.

People suffering from depression may exhibit symptoms such as loss of interest in daily activities, excessive sleeping, feelings of hopelessness, and so on.

According to one study, omega-3 fatty acids can help reduce symptoms associated with mental health problems. EPA is the most effective in combating mental health disorders of the three major categories of omega-3 fatty acids.

Improves the brain health of both the infant and the mother during pregnancy

Omega-3 fatty acids improve the brain health of pregnant women and infants. This is due to the high concentration of DHA found in the brain and retina. Furthermore, according to one study, infants given DHA had better eyesight than others. In addition, there are several other advantages for the child, such as:

  • Autism, ADHD, and Cerebral Palsy risk are all reduced.
  • Social and communication abilities that are well developed
  • Smaller behavioural issues
  • Higher IQ scores

Protection Against Autoimmune Diseases

By attacking foreign cells, our immune system protects us from disease. However, it occasionally misidentifies healthy cells as unwanted cells and begins attacking them.

The exact cause of these autoimmune diseases is unknown, but they are caused by genetic factors. Diabetes type 1 is a well-known example of such a disorder.

According to one study, consuming omega-3 fatty acids in your early life can help you avoid autoimmune diseases such as diabetes.

Enhances Brain Health

There is a decline in mental health among older adults. It occurs as a result of the deterioration of brain function that occurs with age. Consuming omega-3 fatty acids during the onset of Alzheimer’s disease, according to one study, can help prevent its symptoms.

This is due to the fact that omega-3 fatty acids are neuroprotective and improve cognitive abilities. As a result, it is advised to consume it in order to maintain good mental health and regulate emotions.

Beneficial to Bone and Joint Health

After the age of 40, bone density decreases due to ageing and other factors. As a result, eating omega-3-rich foods can help meet the bones’ calcium requirements. This reduces the risk of osteoporosis and arthritis. According to one study, people who ate omega-3 fatty acids had less joint pain and better bone health.

Inflammation is another common problem that can lead to bone weakness. Omega-3 fatty acids have also been shown to help with this issue.

Promotes Healthy and Glowing Skin

DHA is the main component of the skin’s structure. It is in charge of maintaining the health of cell membranes. The skin is soft, radiant, and acne-free when the cell membrane is healthy. Furthermore, EPA has a number of advantages for achieving spotless skin.

According to one study, consuming omega-3 fatty acids can aid in the prevention of acne and the management of excessive oil production in the skin. It also keeps your skin smooth and hydrated and prevents premature skin ageing.

Reduce Your Cancer Risks

According to data, more than 9.5 million people die each year as a result of cancer. Omega-3 fatty acids are extremely beneficial and aid in the prevention of cancer risk factors.

For example, studies show that people who consumed omega-3 fatty acids had a 55% lower risk of developing colon cancer. It also reduces the risk of men developing prostate cancer and women developing breast cancer.[1]

Provides Better Sleep

Proper sleep, in addition to a well-balanced diet, is essential for living a healthy lifestyle. According to a study on sleep deprivation, inadequate sleep is the leading cause of diabetes, depression, and obesity. Furthermore, in adults, low omega-3 fatty acid levels cause sleep apnea and obstructive sleep apnea.

Melatonin levels are reduced when DHA levels are reduced. It is a hormone that regulates people’s sleeping patterns. Several studies suggest that omega-3 improves sleep quality and duration. As a result, both children and adults should take omega-3 supplements.

List of Omega-3 Foods

Consuming foods high in omega-3 fatty acids can significantly improve your overall health. Here is a list of foods that contain omega-3 fatty acids and provide a variety of other health benefits:


Salmon is regarded as one of the most nutrient-dense foods. People all over the world consume it because it is high in omega-3 fatty acids. As a result, it is one of the most popular foods. Furthermore, it is high in nutrients such as vitamin B, vitamin D, and protein.

According to research, eating salmon on a regular basis can lower your risk of developing cardiac disease, depression, and dementia.

Nutritional Facts

Salmon contains the following nutrients in 100 grammes:

127 calories
Carbohydrates – 0 g Fibre – 0 g Protein – 20.5 g
4.4 g of fat


Sardines are another type of fish that is commonly consumed as a starter. These tiny fish provide a plethora of nutritional benefits. Furthermore, they have a low level of mercury.

As a result, it is regarded as a safer option than other seafood dishes. Sardines’ health benefits include improved bone health, heart health, and cognitive function.

Nutritional Facts

Sardines contain the following nutrients in 100 grammes:

Calories: 142,400
15.9gm protein
9.43gm fat
0g Carbohydrates
0g of fibre
0g sugars
377mg calcium
349mg sodium

Chia Seeds

Chia seeds are a member of the mint family. They are high in nutritional benefits such as vitamins, minerals, and antioxidants like Quercetin. As a result, they were used for medicinal purposes by ancient people.

Furthermore, chia seeds promote heart health, manage blood sugar levels, improve bone health, and aid in weight management.

Nutritional Facts

Chia seeds have the following nutritional value per 100 grammes: –

  • 534 kilocalories
  • Proteins – 18.3 g Carbohydrates – 28.9 g Fats – 42.2 g
  • 27.3 g fibre
  • 255 mg calcium
  • 5.73 mg iron
  • 392 mg Magnesium
  • 642 mg phosphorus
  • 813 mg potassium
  • 30 mg sodium
  • 4.34 mg zinc
  • 25.4 mcg selenium
  • 87 mcg folate
  • 78.7 mcg choline


Walnuts are high in antioxidants and high in omega-3 fatty acids. Consuming walnuts on a daily basis can help protect you from heart disease, cancer, and improve your brain health. Walnuts can be eaten as a snack or added to your favourite desserts.

Nutritional Facts

Walnuts have a fat content of 65% and a protein content of 15%. Because it is a tree nut, it has very little carbohydrate content. Walnuts’ carbohydrate content is primarily due to their fibre content.

One serving (100 gm) of walnuts contains the following nutrients:

687 kilocalories
64.5 g fat
Protein: 15.6 g Carbohydrates: 11 g
6.7 g of fibre

Soybean oil

Soybean is a popular plant-based protein source for vegetarians. It also contains nutrients such as vitamin K, potassium, and riboflavin and is a versatile food option because it can be consumed in soy milk, tofu, and soy oil, among other things.

It has been shown to be effective in the treatment of cancer and in the development of stronger bones.

Nutritional information per 100 grammes

  • 173 kilocalories
  • 63 percent water
  • 16.6 gramme protein
  • Carbohydrates: 9.9 g
  • 3 gramme sugar
  • 6 grammes of fibre
  • 9 g of fat

Side Effects of Omega-3 Fatty Acids

Excessive consumption of Omega-3 fatty acids can lower blood pressure and cause blood thinning. If you’ve recently had surgery, consuming them in large quantities may exaggerate the bleeding or increase the levels of bruising.

To avoid negative effects on your body, try to consume them in moderation. The following are some of the other risk factors associated with excessive consumption:

Gaining Weight

Many people begin to consume excessive amounts of fatty acids in order to burn the stored fat.

Unfortunately, because high amounts of fat and calories are present, these fatty acids cause weight gain when consumed in excess. As a result, excessive consumption can quickly lead to weight gain.

Problems with Brain Development

Mercury-containing substances found in omega-3 fatty acids can impede the development of an unborn child’s brain. As a result, natural sources of omega-3 fatty acids are preferable to supplements.


Those who consume large amounts of omega-3 fatty acids frequently experience diarrhoea or irritable bowel movements. So, if you’re getting diarrhoea, it’s time to cut back on the fatty acids in your diet.

In conclusion

Omega-3 fatty acids provide numerous benefits and aid in the attainment of optimal health. However, make sure you get the right amount in your diet. An excess of omega-3 fatty acids can be harmful to one’s health.

You can get them from food sources such as fish or plant-based foods, or you can take them as a health supplement. A health expert can also advise you on how much omega-3 fatty acids to include in your diet and in what form.

Frequently Asked Questions (FAQs)

Q. What are the benefits of Omega-3 fatty acids?

A. Omega-3 fatty acids have numerous health benefits, including the prevention of heart disease, improved brain function, and bone health. It’s also good for your skin and hair.

Q. Which food contains the most Omega-3 fatty acids?

A. Mackerel has the highest concentration of omega-3 fatty acids. A serving of Mackerel contains 4,107 mg omega-3. Other omega-3-rich foods include salmon, walnuts, chia seeds, and so on.

Q. Which vegetables are high in Omega-3 fatty acids?

A. Omega-3 fatty acids are abundant in spinach, broccoli, avocado, and beans. Spinach has the highest concentration of omega-3 fatty acids of any of these.

Q. Why is Omega-3 harmful to your health?

A. In general, omega-3 fatty acids are beneficial to your health. Excessive consumption of omega-3 fatty acids, on the other hand, can cause diarrhoea, weight gain, abnormal bleeding, and other symptoms.

Q. What happens if you take Omega-3 on a daily basis?

A. Regular, moderate consumption of omega-3 fatty acids may result in a number of advantages. It may, for example, aid in the prevention of heart disease, the reduction of cancer risk, the promotion of weight loss, the improvement of brain health, and the improvement of skin and hair health. To avoid side effects, it is best to get omega-3 from food rather than health supplements.

Q. Is it advisable to take Omega-3 supplements on a daily basis?

A. Of course. A daily dose of 1000mg may help you achieve good health. If you want to lower your triglyceride levels, you can take 2000-4000mg after consulting with a medical health professional.

Q. What are the signs and symptoms of Omega-3 deficiency?

A. Skin problems, joint pain, irritation, and dry eyes are some of the most common symptoms of omega-3 deficiency. Furthermore, it can cause fatigue, poor memory, dry skin, heart problems, mood swings or depression, and poor circulation. As a result, getting enough omega-3 fatty acids is critical.

Q. Are eggs high in Omega-3 fatty acids?

A. Of course. Although eggs are not the richest source of omega-3 fatty acids, they do provide many of their benefits. Each serving of two eggs, for example, contains 180 mg of omega-3 fatty acids.

Q. Is avocado high in Omega-3 fatty acids?

A. Of course. Avocados contain a high concentration of Omega-3 fatty acids. They contain ALA, a fatty acid that is a subtype of omega-3 fatty acids. Avocados are also high in fibre, vitamins C, E, K, and B complex, as well as potassium.

Q. How can I get Omega-3 fatty acids naturally?

A. Foods high in omega-3 fatty acids include seafood such as fish, nuts, and plant-based oils such as soybean oil and flaxseed oil. As a result, eating these foods in moderation may help you get enough omega-3.

Q. Can Omega-3 have an effect on the liver?

A. Supplementing with omega-3 fatty acids effectively reduces liver fat and inflammation in people with NAFLD. High doses of omega-3 fatty acids, on the other hand, can harm your liver and even cause it to fail. As a result, you should consume them sparingly.

Q: Will Omega-3 cause me to gain weight?

A. Omega-3 fatty acids are recommended for people who want to lose weight. Overconsumption of omega-3 fatty acids, on the other hand, may result in weight gain. This is due to the fact that omega-3-rich foods are also high in calories.

Q. Can I take omega-3 supplements along with multivitamins?

A. Taking them together is not required. Vitamins can be found in a variety of omega-3-rich foods. Taking them together, on the other hand, can significantly supplement your diet. As a result, combining them in your diet will meet your nutritional needs.

Q. How long does it take Omega-3 to work?

A. A significant change in health can be observed between six weeks and six months. However, it can also be affected by underlying health issues (if any).

Q: How much Omega-3 should a woman take on a daily basis?

A. For women, a dose of 1100 mg is recommended. However, it is best to consult with a doctor before taking it.

Q: Does Omega-3 aid in weight loss?

A. Yes, including Omega-3 fatty acids in your diet can help you lose weight. However, the effect on weight loss is mild, and it is dependent on body type.

Q: Should you take Omega-3 in the morning or at night?

A. To feel energised in the morning, consume Omega-3 in the evening or after dinner.

Q. Can Omega-3 help with joint pain?

A. Omega-3 fatty acids have been shown to improve blood flow throughout the body, resulting in less joint pain. Furthermore, it alleviates symptoms such as swelling and morning stiffness.

Q. Which Omega-3 fatty acid is best for arthritis?

A. A mixture of EPA and DHA To alleviate arthritis symptoms, omega-3 fatty acids are recommended.

Q: Does Omega-3 help to reduce inflammation?

A. A combination of EPA and DHA can aid in inflammation prevention. This is due to the fact that omega-3 fatty acids may reduce the production of molecules and substances associated with inflammation.

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