Healthy Foods

Why should your diet contain Omega-3

Your diet should contain omega-3

1-What is omega-3?

Omega-3 refers to a group of polyunsaturated fatty acids (PUFAs) that have a specific chemical structure in which the first double bond occurs at the third carbon atom from the methyl (CH3) end of the carbon chain. This chemical structure distinguishes them from another group of fatty acids known as omega-6 fatty acids, which have their first double bond at the sixth carbon atom from the methyl end.

Omega-3 fatty acids are essential nutrients for human health because the human body cannot synthesize them on its own and must obtain them through dietary sources. We can identify 3 types of omega-3 fatty acids are:

A-Alpha-linolenic acid (ALA):

This is a short-chain omega-3 fatty acid found in plant-based sources like flaxseeds, chia seeds, walnuts, and hemp seeds.

B-Eicosapentaenoic acid (EPA):

EPA is a long-chain omega-3 fatty acid primarily found in fatty fish like salmon, mackerel, and sardines.

C-Docosahexaenoic acid (DHA):

DHA is another long-chain omega-3 fatty acid found in fatty fish and is especially important for brain health and development .

Omega-3 fatty acids are known for their numerous health benefits, including cardiovascular health, brain function, reducing inflammation, and more. They are often recommended as part of a healthy diet and can be obtained from both dietary sources and supplements.

Omega-3 fatty acids are abundant in fish oil, making fish oil supplements a popular source of these essential nutrients. Fish oil supplements typically contain two important long-chain omega-3 fatty acids: eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These fatty acids are primarily found in fatty fish and are associated with various health benefits.

2-What makes fish oil unique and special?

 Fish oil is considered special and valuable primarily because it is a rich source of specific types of omega-3 fatty acids, namely eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These two omega-3 fatty acids have several unique and beneficial properties that set fish oil apart:

8-Omega-3 Content:

Fish oil is one of the most concentrated dietary sources of EPA and DHA, especially when derived from fatty fish like salmon, mackerel, and sardines. These long-chain omega-3 fatty acids are associated with numerous health benefits, as mentioned earlier.

7-Cardiovascular Health:

EPA and DHA in fish oil have been extensively studied for their cardiovascular benefits. They can help lower triglycerides, reduce blood pressure, improve blood vessel function, and reduce inflammation, all of which contribute to a lower risk of heart disease and stroke.

6-Brain Health:

DHA is a critical component of brain cell membranes and plays a pivotal role in brain development and function. It is important for cognitive function, memory, and mood regulation. EPA and DHA in fish oil may also support overall brain health and reduce the risk of cognitive decline.

5-Eye Health:

DHA is found in high concentrations in the retina, where it helps maintain vision health. Omega-3s from fish oil are associated with a reduced risk of age-related macular degeneration and other eye conditions.

4-Anti-Inflammatory Properties:

EPA and DHA have strong anti-inflammatory properties, which can help reduce chronic inflammation in the body. Chronic inflammation is linked to various chronic diseases, including arthritis, heart disease, and some autoimmune conditions.

3-Joint Health:

Omega-3s in fish oil may help reduce joint pain and inflammation in conditions like rheumatoid arthritis and osteoarthritis.

2-Skin Health:

Some research suggests that omega-3s in fish oil may benefit skin health by reducing inflammation and improving skin conditions like eczema and psoriasis.

1-High Bioavailability:

The EPA and DHA in fish oil are in a form that is easily absorbed by the body, making fish oil a convenient way to obtain these essential fatty acids.

3-The best sources (riches) of omega-3

The best sources of omega-3 fatty acids can vary depending on dietary preferences and individual health considerations. Here are some of the most well-known and widely available sources of omega-3s:

10-Fatty Fish:

Fatty fish are among the richest natural sources of omega-3 fatty acids, particularly EPA and DHA. Examples of fatty fish high in omega-3s include salmon, mackerel, sardines, trout, and herring. Consuming these fish as part of your diet can provide a significant amount of omega-3s.

9-Fish Oil Supplements:

If you don’t consume fatty fish regularly, fish oil supplements are a convenient way to increase your omega-3 intake. Look for high-quality fish oil supplements that provide both EPA and DHA. Consult a healthcare professional for guidance on dosage.

8-Algal Oil:

It is derived from algae and is an excellent source of DHA, making it suitable for vegetarians and vegans. Algal oil supplements are available and provide a plant-based alternative to fish oil.


Flaxseeds and flaxseed oil are high in alpha-linolenic acid (ALA), a type of omega-3 fatty acid. Ground flaxseeds can be added to smoothies, oatmeal, or yogurt, and flaxseed oil can be used as a dressing or added to foods after cooking.

6-Chia Seeds:

Chia seeds are another plant-based source of ALA omega-3s. They can be sprinkled on cereals, mixed into smoothies, or used as a pudding base when combined with liquid.


Walnuts are a tree nut high in ALA omega-3s. They make a convenient and healthy snack, can be added to salads, or used as an ingredient in various recipes.

4-Hemp Seeds:

Hemp seeds are another plant-based source of omega-3s, providing both ALA and other beneficial nutrients. They can be sprinkled on salads, yogurt, or incorporated into smoothies.

3-Canola Oil:

Canola oil contains a moderate amount of ALA omega-3s and can be used for cooking or as a salad dressing.


Edamame, or young soybeans, are a source of ALA omega-3s and can be enjoyed as a snack or added to salads and stir-fries.

1-Seaweed and Sea Vegetables:

Certain types of seaweed, such as kelp and nori, contain small amounts of EPA and DHA. They are commonly used in sushi and other Asian dishes.

It’s important to note that while ALA from plant sources is beneficial,  conversion of ALA to the more active forms of omega-3s (EPA and DHA) in the body is limited. Therefore, for those who do not eat fish, a fish oil  or algae oil supplement may be necessary to ensure an adequate supply of EPA and DHA.

 As with any dietary change or supplement, you should consult your healthcare professional or registered dietitian to determine the best approach to meet your specific nutritional needs and health goals.

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