1, soba heat is 340 calories, relatively high. Soba is buckwheat flour and water and dough cut into thin noodles, belonging to the noodles. Nutritious, easy and quick to eat, is a popular mass food in northern Shaanxi.

2, buckwheat is native to Asia. Buckwheat is mostly produced in alpine areas, can grow on barren land, like the mountainous areas of Shanxi Shuozhou, northern Shaanxi, etc., the land is infertile, not suitable for growing wheat. So there since ancient times, the habit of eating buckwheat.