Natural marine source phospholipids comprising polyunsaturated fatty acids and their applications

A capsule comprising an Antarctic krill oil extract comprising a phospholipid of the formula (I),

• wherein:
• R1 and R2, each together with the respective carboxyl groups to which each is attached, each independently represents a docosahexaenoic acid (DHA) or an eicosapentaenoic acid (EPA) residue, and X is —CH2CH2NH3, —CH2CH2N(CH3)3, or
• the extract is extracted under conditions suitable for preserving an effective amount of a phospholipid having two independently selected fatty acid chains within the same phospholipid selected from EPA and DHA;
• the extract comprises phospholipids in an amount of at least 40% w/w;
• the extract comprises omega-3 fatty acids in an amount of at least 15% w/w;
• the extract comprises astaxanthin and
• the extract is suitable for human consumption.