Compositions including at least one Omega-3 fatty acid ester and at least one surface active agent are provided; wherein the compositions form micelles when in contact with an aqueous medium. Also provided is a method of administering to a subject such a composition, wherein the at least one Omega-3 fatty acid ester forms micelles when in contact with an aqueous medium, and the bioavailability of the at least one Omega-3 fatty acid ester is substantially independent of a food effect. The compositions are useful for treating cardiovascular conditions or disorders in a subject and for reducing side effects associated with the ingestion of Omega-3 fatty acid esters. Further provided are also various dosage forms for administering the compositions and use of the compositions in functional foods. Provided herein are also kits with instructions on how to administer the compositions.