Fish oil is one of the most widely used dietary supplements, often promoted for heart, brain, joint and general wellness. Its health reputation comes mainly from omega-3 fatty acids especially EPA and DHA, which are naturally found in oily fish such as salmon, sardines, mackerel, anchovies and tuna. These essential fatty acids are important because the body cannot make enough of them on its own, so they must come from food or supplements.
What Is Fish Oil?
Fish oil contains two key omega-3 fatty acids: eicosapentaenoic acid, commonly known as EPA, and docosahexaenoic acid, known as DHA. EPA is often linked with heart and inflammatory health, while DHA is especially important for the brain, eyes and nervous system. Another omega-3, ALA, is found in plant foods such as flaxseed, chia seeds and walnuts, but the body converts ALA into EPA and DHA only in small amounts.
Health Benefits
Fish oil may support several areas of health, but the strength of evidence varies depending on the condition and the dose used.
- Heart health: Eating fish regularly is associated with better cardiovascular health.
- Triglyceride management: Omega-3 fatty acids can reduce high triglycerides, especially at therapeutic doses recommended by a healthcare professional.
- Joint comfort: Some people with rheumatoid arthritis may experience modest improvements in joint tenderness, morning stiffness or pain when using fish oil supplements due to the anti-inflammatory benefit of omega 3.
- Brain and eye health: DHA is an important structural fat in the brain and retina. Adequate omega-3 intake supports normal function, although supplements are not proven to prevent cognitive decline for everyone.
- Inflammation support: Omega-3s play a role in the body’s inflammatory response, which may be one reason fish oil is studied in inflammatory conditions.
Who Might Consider a Fish Oil Supplement?
A fish oil supplement may be considered by people who rarely eat fish, have raised triglycerides, or have specific health needs where a healthcare professional has advised omega-3 supplementation. Vegetarians, vegans or those who avoid seafood may consider algae-based omega-3 supplements, which can provide DHA and sometimes EPA.
What to Look for When Choosing an Omega-3 Supplement
| What to Check on the Label | |
| EPA + DHA | Check the actual amount of EPA and DHA per serving—not just the total fish oil amount. |
| Strength | Higher concentration may provide more omega-3 per capsule, which can reduce capsule burden. |
| Form | Triglyceride (TG) and phospholipid (PL) forms are generally better absorbed than ethyl ester (EE) form. |
| Purity | Choose products tested for heavy metals, contaminants and quality standards. |
| Freshness | Look for products with strong quality controls to help maintain potency and reduce rancidity. |
| Sustainability | Consider brands that follow responsible sourcing and sustainable harvesting practices. |
Finding the Right Omega-3 for Your Health Needs
For individuals who are new to Omega-3 supplementation and are looking for omega-3 as a maintenance supplementation for heart, eye and brain health, consider an option with total EPA and DHA of at least 300mg. BLACKMORES, Omega-3 Fish Oil 1000mg Odourless 120s | Watsons Malaysia
For individuals with difficulty in swallowing capsules due to size, consider a convenient, smaller capsule size fish oil to make it easier to swallow without compromising on Omega-3 intake. BLACKMORES, Omega-3 Complex 500mg 120s | Watsons Malaysia
For individuals seeking higher-strength Omega-3 support, look for a high strength fish oil supplement that provides at least three times (total omega 900mg) or four times (total omega 1200mg) the strength compared to a standard fish oil for a convenient one-capsule daily dose. BLACKMORES, Omega 3 Triple Strength 60s | Watsons Malaysia BLACKMORES, Omega-3 Complex Gold 60s | Watsons Malaysia
Not everyone consumes fish or fish-derived products.
For individuals who are vegans, vegetarians or allergic to fish, consider a plant-based omega-3 sourced from algae and flaxseed, which provides EPA, DHA and ALA altogether. BLACKMORES, Blackmores Plant Based Omega-3 30s | Watsons Malaysia
Omega-3 supports heart, brain and eye health, but the best source is regular intake of oily fish as part of a balanced diet. If fish intake is low, choose an omega-3 supplement based on EPA and DHA content, quality, and suitability for your health needs—and seek healthcare advice if you have medical conditions, take medicines, are pregnant, breastfeeding, or have a fish allergy.
