Abstract: Disclosed is a new class of lipid vesicles, liposoils, which have high oil content, low water content, and protein. The liposoils are made using a combination of a surfactant and either dried egg yolk or dried whole egg as the wall material, oil, and an aqueous diluent. Unlike most lipid vesicles, the liposoils can be made with an aqueous diluent having high salinity; in fact, sea water is a preferred aqueous diluent. Liposoils have particular applicability as a food for marine environments, such as a food source for filter feeders such as oysters. Methods of making the liposoils is also disclosed.