Buckwheat honey contains a lot of fructose. Its colour is dark, even brown. When stored for a long time in conditions exposed to light, it changes colour to dark brown, even black. It crystallizes into coarse, hard crystals that sediment out in fluid honey. The taste is sharp, even slightly burning. Buckwheat honey contains a particularly large quantity of easily assimilable magnesium, therefore, it is recommended as a component of an anti-cancer diet. It is applied in the treatment of circulatory system diseases, especially those of sclerotic origin, as well as in liver diseases. This particular type of honey is recommended in cases of sight, hearing and memory impairments. It also supports the cardiac muscle function.