The effect is there, but it is impossible to turn everything black. Black rice only acts as a nourishing and prevent gray hair.
Black rice contains mostly 1 to 3 times more inorganic salts such as manganese, zinc, and copper than rice; it also contains vitamin C, chlorophyll, anthocyanins, carotene, and cardiac glycosides that rice lacks. Due to its special ingredients, black rice is more nutritious than ordinary rice.
Eating more black rice has the functions of appetizing and benefiting the heart, strengthening the spleen and warming the liver, improving eyesight and activating blood circulation, smoothing and replenishing essence. It is suitable for teenagers with gray hair, women with postpartum weakness, physical weakness after illness, anemia and kidney deficiency. It has a very good nourishing effect.