Why Is Omega-3 So Important for Your Health?

Omega-3 fatty acids are essential for heart health, brain function, eye health, mood regulation and reducing chronic inflammation. The body cannot produce them on its own, which means they must come from diet or supplementation. The WHO estimates that over 70 percent of the global population does not consume enough omega-3, making deficiency one of the most common nutritional gaps worldwide.

The two most important omega-3 fatty acids for health are EPA and DHA, found primarily in fatty fish and algae. ALA, found in plant sources like flaxseeds and walnuts, can be partially converted by the body but not efficiently enough to meet most people's needs.

What is omega-3 and why can the body not produce it?

Omega-3 fatty acids are long-chain polyunsaturated fats that the body cannot synthesise on its own. They must therefore come from food or supplements. The three main types are ALA (alpha-linolenic acid), found in plant oils, nuts and seeds, EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), both found primarily in fatty fish and algae.

Fatty fish such as mackerel, herring, salmon and tuna are among the richest dietary sources of EPA and DHA. Plant-based sources include flaxseed oil, walnut oil, chia seeds and green leafy vegetables. For those who do not eat fish regularly, supplementation with fish oil or algae-based omega-3 is the most reliable way to meet daily requirements. The recommended daily intake for adults is 250 to 300 mg of EPA and DHA combined.

Why is the omega-3 to omega-6 ratio so important?

The balance between omega-3 and omega-6 fatty acids matters as much as the total amount of omega-3 consumed. The optimal ratio is between 1:1 and 1:4. In reality, most people in Western diets consume a ratio closer to 1:20, driven by high consumption of processed foods, vegetable oils and meat.

This imbalance is significant because high omega-6 intake promotes inflammation in the body and can negatively affect blood viscosity. Omega-3, by contrast, has anti-inflammatory properties that help counterbalance these effects. Simply increasing omega-3 intake, without necessarily reducing omega-6, can help bring the ratio back into a healthier range.

How does omega-3 support heart health?

Omega-3 is one of the most well-researched nutrients for cardiovascular health. Several risk factors for heart disease appear to be reduced by regular fish consumption or fish oil supplementation. Specifically, omega-3 can increase levels of HDL (good) cholesterol, lower triglycerides by 15 to 30 percent, reduce blood pressure, slow the development of arterial plaque and support healthy blood flow. For people who do not eat fatty fish at least twice a week, supplementation is an effective and convenient alternative.

Can omega-3 improve brain function and reduce cognitive decline?

The brain consists of almost 60 percent fat, and a large proportion of this is omega-3, particularly DHA. DHA is heavily involved in the formation of neural connections and the transmission of signals in the brain. The highest concentrations of DHA are found in the cerebral cortex, mitochondria and synapses.

Research suggests that people who regularly consume omega-3 tend to experience slower cognitive decline as they age, and that adequate DHA intake is associated with reduced risk of Alzheimer's disease. As the brain cannot produce DHA on its own, consistent dietary or supplemental intake is essential for long-term brain health.

Does omega-3 help with depression and mental health?

Some studies indicate that omega-3 intake may help prevent the onset of certain mental health conditions or alleviate their symptoms. People with depression have been found to have lower omega-3 levels in their blood on average. EPA in particular appears to play a role in mood regulation, and several clinical trials have explored omega-3 as a supportive intervention alongside conventional treatment for depression and anxiety.

How does omega-3 support eye health?

Just as the brain depends heavily on DHA, so do the eyes. DHA is a structural component of the retina, and inadequate intake is associated with increased risk of macular degeneration and dry eye syndrome. People who do not consume enough omega-3 are more susceptible to age-related eye conditions. Regular omega-3 intake supports long-term eye health and visual function.

Can omega-3 reduce inflammation in the body?

Yes. Chronic inflammation is linked to serious conditions including obesity, type 2 diabetes, depression and cardiovascular disease. Omega-3 fatty acids have well-documented anti-inflammatory properties. They work by modulating the production of inflammatory molecules, helping the immune system respond appropriately without triggering excessive or prolonged inflammation. A food-first approach combined with consistent supplementation provides the most reliable anti-inflammatory benefit.

Does omega-3 support skin and bone health?

The skin contains a significant concentration of omega-3 fatty acids. Research suggests omega-3 may have beneficial effects on inflammatory skin conditions such as psoriasis and dermatitis, helping to maintain the skin's barrier function and moisture balance. For bone health, studies have shown that omega-3 may support calcium absorption and reduce bone loss, complementing the role of calcium and vitamin D in preventing osteoporosis as we age.

How to get enough omega-3 every day

The simplest way to ensure adequate omega-3 intake is to eat fatty fish at least twice a week. For those who do not eat fish regularly, a high-quality supplement is the most reliable alternative. Our Premium Omega-3 Fish Oil contains a pure, high-concentration extract of EPA and DHA. For vegans and vegetarians, our Vegan Omega-3 from Algae provides DHA and EPA from algae, the same original source that fish obtain their omega-3 from.

Pay attention to your omega-3 intake and the balance with omega-6. It is one of the simplest and most impactful steps you can take for your long-term health.

Frequently Asked Questions

What are the signs of omega-3 deficiency?

Common signs of omega-3 deficiency include dry or flaky skin, brittle hair and nails, fatigue, poor concentration, joint stiffness and low mood. Because omega-3 is involved in so many bodily processes, deficiency can manifest in diverse and often subtle ways. The WHO estimates that over 70 percent of people do not consume adequate amounts of omega-3.

How much omega-3 should you take per day?

The general recommendation for adults is 250 to 300 mg of combined EPA and DHA per day for general health maintenance. Higher doses of 1000 to 3000 mg are sometimes recommended for specific health goals such as cardiovascular support or inflammation reduction. Always check with a healthcare professional before taking high doses.

Is vegan omega-3 from algae as effective as fish oil?

Yes. Algae is the original source of EPA and DHA, fish accumulate these fatty acids precisely because they eat algae. Algae-based omega-3 provides the same essential fatty acids as fish oil and is particularly suitable for vegans, vegetarians and anyone who prefers a sustainable, ocean-friendly alternative. Our Vegan Omega-3 from Algae contains both DHA and EPA in bioavailable form.

Can you get enough omega-3 from plant foods alone?

Plant foods such as flaxseeds, chia seeds and walnuts contain ALA, a form of omega-3 that the body can partially convert into EPA and DHA. However, this conversion is inefficient, typically only 5 to 15 percent of ALA is converted. For most people, relying on plant sources alone is not sufficient to meet EPA and DHA requirements, making algae-based supplementation the most practical solution for vegans.

Does omega-3 help with joint pain?

Omega-3 fatty acids have anti-inflammatory properties that may help reduce joint pain and stiffness, particularly in conditions like rheumatoid arthritis. Several studies have found that regular fish oil supplementation can reduce the need for anti-inflammatory medication in people with inflammatory joint conditions, though results vary between individuals.

When is the best time to take omega-3 supplements?

Omega-3 supplements are best taken with a meal that contains fat, as this improves absorption significantly. There is no strong evidence that time of day matters, so the most important factor is consistency. Taking your supplement at the same time each day, for example with breakfast or dinner, makes it easier to maintain the habit.