Dulse, a type of seaweed that is fit for consumption, is commonly utilized as a vegetable and soup ingredient in Oriental cuisine. This seaweed serves as a primary source of nourishment for the swifts, whose nests are known to contain the gelatin utilized in the production of birds’ nest soup. Dulse is also prevalent along the southern coastal regions of Wales, where it is cooked and flavored, or preserved through pickling for future consumption.