Health functional beverage made from glucosamine extracted from shellfish shells in the nature of non-alcoholic water-based beverages; health functional beverage made with N-acetylglucosamine extracted from shellfish shells in the nature of non-alcoholic water-based beverages; a functional health drink containing chitooligosaccharide extracted from the shells of crustaceans as the main ingredient in the nature of non-alcoholic water-based beverages; a health functional beverage made with coll...