Sea vegetables, or edible seaweeds and mosses, rich in minerals and vitamins, are served in small quantities and comprise about 5 percent or less in the MB diet. They are among the least processed natural foods and the most safe, there is no toxic varieties of sea vegetables. They are the best when consumed in whole form, rather than in capsules or as pills. They do not need to be covered tightly, just be kept in a cool, dark place. Cooked sea vegetable can be stored in the refrigerator in a closed glass container for about a week.