Unlike other grains, buckwheat is high in fat and 80 % of the fat is fatty acid. It contains 19 amino acids and vitamins including 8 essential amino acids. Also it is rich in rutin which is a kind of Vitamin D.
Rutin makes capillary strong and increase elasticity of blood vessel. So it is good for people with high blood pressure or hardening of the arterie. Antioxidative activity effect prevents skin from aging.
Edible buckwheat is generally classified into dan buckwheat(general buckwheat) and sseun buckwheat. Sseun buckwheat is also called black buckwheat or tatari buckwheat.
Black buckwheat contains scores and hundreds times more rutin than general buckwheat. Rutin is good for adult diseases such as high blood pressure and diabetes because of the antioxidation and hemostasis effect. From this reason black buckwheat has drawn attention for the it’s value of medical ingredients rather than food ingredients.
When using it as food ingredient, after threshing the grain of buckwheat, it is boiled to get rid of bitter taste. So it doesn't have bitter taste like its name.