Derived from Antarctic krill, krill oil supplements provide EPA and DHA omega-3 fatty acids in phospholipid form, alongside astaxanthin - a naturally occurring carotenoid. The phospholipid structure is distinct from the triglyceride form found in most standard fish oil products, and it is this difference that underlies much of the buyer interest in krill oil as an alternative omega-3 source. EU-authorised health claims for EPA and DHA cover support for normal heart function, maintenance of normal blood triglyceride levels, and normal brain function. For anyone comparing krill oil and fish oil, the key practical differences are capsule size, aftertaste, and the presence of astaxanthin. Krill oil capsules are generally smaller and better tolerated by those sensitive to the reflux sometimes associated with larger fish oil softgels. Because krill, like shellfish, is a known allergen, anyone with a shellfish allergy should check the product label carefully before use. If you are taking prescribed medication, speak with your pharmacist before adding any new supplement to your routine. Always read the patient information leaflet. At Ronaghan's Pharmacy, our team is on hand to advise on supplement choice and to help you find the right product for your circumstances. Browse the krill oil range below, or explore our related cod liver oil category and the Seven Seas Cod Liver Oil range for a broader view of marine omega-3 options.Krill oil and cod liver oil are both popular omega-3 sources; compare the two to find the format that suits you.