A Krill oil preparation including a reduced amount of trimethylamine of 5 mgN/100 g or less, or more than 700 ppm by weight of endogenous calcium and/or less than 1200 ppm by weight of sodium. A process of making such a Krill oil preparation that includes a step of extracting Krill oil from Krill with a solvent mixture of one or more polar solvents and one or more non-polar solvents. A method of treating a human in need of treatment that includes administering to the human an amount of such a Krill oil preparation.
