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Edible bird's nest, or EBN, is a delicacy prized for its nutritional and medicinal value. The nests are made of solidified saliva secreted by the swallow species (Aves: Apodidae), mainly those of the genera Aerodramus, Hydrochous, Schoutedenapus and Collocalia, and are harvested for food, medicine and other uses. They contain a variety of water-soluble proteins, carbohydrates, inorganic salts and minerals, as well as some hormones, with anti-influenza, anti-tumor, and anti-aging properties reported in traditional and modern medicine. However, the precis