Do they have to be raw? The answer is yes, well almost always yes. BoosTX Reviews The process of cooking the oysters releases many of its beneficial properties. However, oyster soup is one way to enjoy oysters without losing too many of its beneficial properties; however even soup will lose some of the beneficial nutrients. Another alternative is to use oysters in sushi. Now you can enjoy the full benefits of oysters without having to force yourself into swallowing gooey, raw fish stuff.