Organic Jinenjo Soba Noodles are a thin, light brown coloured noodle made from buckwheat and whole wheat flour. They also contain Jinenjo, often called Wild Mountain Yam, which is believed to aid digestion, increase stamina and promote strength and vitality. Buckwheat is also rich in protein, minerals and bioflavonoids and can help strengthen capillaries. It is also good for the digestion. Buckwheat contains as much vitamin B1 as brown rice and nearly twice the levels of B1 found in wheat.