These noodles are authentic Japanese-style soba (buckwheat) noodles, with bonito broth, kelp stock and a rich soy sauce flavor. The noodles are made from buckwheat flour, wheat flour, and yam flour, which gives them a smooth and chewy texture. Product specifications for Itomen Yamaimo Soba 3.0 oz. (56g.). Allergens: Wheat, Buckwheat, Soybean, Fish, Yam., Milk, and Monosodium Glutamate.