References to the use of Nemalion helminthoides as food, namely salads and soups before 1997. In the books:
•Madlener. J.C. The Seavegetables book. New york: Clarkson N. Potter, Inc 1977, p. 119 and 175
•Chapman, V.J. and Chapman, D.J. Seaweeds and Their Uses. London: Chapman and Hall, 1980, p. 66