Omega-3 Supplements

Omega-3 is a family of polyunsaturated fatty acids. EPA and DHA are long-chain omega-3 fatty acids commonly found in oily fish and fish oil supplements. ALA is another type, found in plant foods such as flaxseed, chia seeds and walnuts. Check the product label to see which fatty acids a supplement contains and how much it provides.

There is no single supplement dose that is right for everyone. When comparing products, check the amounts of EPA and DHA per recommended daily serving rather than relying on the total fish oil weight. Authorised EU-derived health claims used in the UK state that EPA and DHA contribute to the normal function of the heart at a combined intake of 250mg daily, while DHA contributes to normal brain function and vision at 250mg daily. These claim conditions should not be interpreted as a universal recommendation to take supplements.

It depends on the product and the fatty acids it provides. Many fish oil supplements contain EPA and DHA, while vegan supplements may use microalgae oil as a direct source of these fatty acids. Other plant-based sources, such as flaxseed oil, primarily provide ALA. Compare the actual EPA and DHA content rather than assuming that all omega-3 supplements are equivalent.

Compare EPA and DHA per serving, the recommended daily serving size, ingredient sources and capsule materials. Also check the product's quality and testing information, dietary suitability and any relevant warnings. A product advertising a high fish oil amount does not necessarily provide the highest amount of EPA and DHA.