Omega 3: Benefits, Deficiency, Side Effects and Source

Omega-3 fatty acids are essential nutrients that are integral to our health and well-being. They serve several functions in the body, from supporting heart health to promoting proper brain function. However, since our bodies cannot produce these acids, it’s crucial to intake them through our diet or supplementation. While they offer numerous benefits, it’s also important to understand the potential side effects of their deficiency or over-consumption. This article aims to delve into the benefits, potential deficiency symptoms, side effects, and sources of Omega-3 fatty acids,

What is Omega 3?

Omega-3 fatty acids are a group of polyunsaturated fats that are crucial for our body’s proper functioning. There are three primary types of Omega-3s: eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and alpha-linolenic acid (ALA). These essential fatty acids play a crucial role in promoting health and well-being. EPA and DHA primarily come from fish and other seafood, while ALA can be found in plant sources such as flaxseeds, chia seeds, and walnuts.

The Benefits of Omega-3 Intake

Omega-3 fatty acids play crucial roles in your body and may provide significant health benefits. Here are some key points:

  1. Heart Health: Clinical research suggests that omega-3s can help reduce risk factors for heart disease, including high cholesterol levels, high blood pressure, and inflammation. Regular intake of Omega-3 fatty acids may reduce the likelihood of heart attacks and strokes.
  2. Mental Health: Omega-3 contributes to brain health. High intake of omega-3s might slow the decline in brain function in older people and enhance cognitive performance.
  3. Eye Health: DHA, a specific type of Omega-3 fatty acid, plays a crucial role as a major structural component in the retina of the eye. Ensuring an adequate intake of Omega-3 can significantly contribute to the prevention of macular degeneration, a condition that can lead to vision impairment and even blindness. By consuming enough Omega-3, you can help safeguard your vision and promote optimal eye health.
  4. Anti-Inflammatory Effects: Omega-3 fatty acids have the potential to decrease the production of molecules and substances associated with inflammation, including inflammatory eicosanoids and cytokines.

In spite of these benefits, moderation is key. Over-consumption can lead to some side effects like nausea, diarrhea, or an unpleasant aftertaste. It’s always advisable to consult with a healthcare professional to understand the appropriate dosage of Omega-3 for your specific health needs.

Deficiency of Omega 3

Since our bodies cannot produce Omega-3s, it is crucial to include them in our diets. A deficiency of these fatty acids can lead to several health issues, including:

  1. Increased Risk of Heart Disease: Low intake of omega-3 has been linked with a higher risk of heart disease and its related conditions.

Some studies have shown that people with low levels of Omega-3s in their blood have a higher risk of heart attacks, strokes, and other cardiovascular diseases.

  1. Poor Brain Function: As mentioned earlier, Omega-3s contribute to brain health. A deficiency can lead to cognitive problems such as memory loss, poor concentration and focus, and even depression.
  2. Inflammation: Omega-3 fatty acids are crucial to regulating the body’s inflammatory response. A deficiency can cause chronic inflammation, leading to various health issues like arthritis, asthma, and inflammatory bowel disease.

Sources of Omega 3

The best way to get enough Omega-3s is through a healthy and balanced diet. Here are some food sources of the essential fatty acids:

  1. Fish and Seafood: Fish like salmon, mackerel, sardines, herring, and tuna are excellent sources of EPA and DHA.
  2. Nuts and Seeds: Walnuts, flaxseeds, and chia seeds are rich in ALA. However, since ALA is not as easily absorbed by the body as EPA and DHA, it’s crucial to consume a variety of sources.
  3. Plant Oils: Soybean oil, canola oil, and flaxseed oil are all good sources of Omega-3s.
  4. Fortified Foods: Some foods like milk, yogurt, and eggs may be fortified with Omega-3s to increase their nutritional value.

What Happens If I Take Omega-3 Every Day?

It’s essential to understand that the benefits of omega-3 intake depend on the dose consumed. The recommended daily intake varies depending on age, sex, and health conditions. Consuming Omega-3s every day in the recommended dosage can provide several health benefits like improved heart and brain function, reduced inflammation, and better overall health. However, taking more than the recommended dose can lead to side effects such as an increased risk of bleeding or interference with certain medications.

Side Effects of Overtake of Omega-3

Excessive intake of Omega-3 fatty acids can have adverse effects on our health. Some potential side effects include:

  1. Bleeding and Bruising: High levels of omega-3s can interfere with blood clotting, leading to excessive bleeding and bruising.
  2. Increased Risk of Stroke: While adequate intake of Omega-3s may reduce the risk of strokes, overconsumption can have the opposite effect.
  3. Reduced Immune Response: Omega-3s are known to have anti-inflammatory effects, but taking high doses for extended periods can reduce your body’s immune response and leave you more susceptible to infections.
  4. Interactions with Medications: Omega-3 supplements may interact with certain medications like blood thinners, cholesterol-lowering drugs, and some anti-inflammatory medications. It’s essential to consult with your doctor before starting any supplements to avoid any potential adverse effects.

Daily Intake And Supplements

The World Health Organization recommends an intake of at least 250-500mg of EPA and DHA per day for healthy adults. However, individuals with certain health conditions may require higher doses under medical supervision. If you are not able to meet your Omega-3 needs through diet alone, supplements can be a convenient option. It’s important to choose reputable brands and consult with your doctor before adding any supplements to your routine.


Omega-3 fatty acids are essential for our overall health and well-being. They provide various benefits, including improved heart and brain function, reduced inflammation, and better eye health. However, it’s crucial to consume them in moderation and consult with a healthcare professional to understand the appropriate dose for your specific needs.

Hot Topics

Related Articles


This site provides educational information only. It is important not to depend on any content here in place of professional medical advice, diagnosis, or treatment. Similarly, it should not replace professional counseling care, advice, diagnosis, or treatment. If you have any health concerns or questions, always seek guidance from a physician or another healthcare professional.