Black rice and purple rice are both coarse grains, rich in nutrients, especially suitable for patients with cardiovascular and cerebrovascular diseases in moderation, although they both belong to the rice category, but for two different foods, the main differences include different appearance, different varieties, different nutritional values, etc., it is recommended that the majority of people eat according to their own needs: 1, different appearance: there are certain differences in the appearance of the two, in color, purple rice color is dark purple, more The color of purple rice is dark purple, closer to black, and the grain form is fuller and more uniform, while the color of black rice is black or black-brown, and the grain is usually oval; 2, different varieties: black rice and purple rice are two different varieties, black rice is a japonica-type ingredients, after the late grinding, processing and get, steaming with a sense of fragrance; and purple rice is more translucent compared to black rice, with a unique sticky feeling, better taste; 3, nutritional value Black rice contains chlorophyll, anthocyanins, carotenoids and cardiac glycosides, which help improve visual fatigue and prevent cardiovascular disease. Purple rice is high in anthocyanin, lysine, tryptophan and vitamin B, which have certain antioxidant effects and can also reduce the risk of atherosclerotic disease. In addition, both are rich in carbohydrates, trace elements, protein, and vitamin E and other nutrients. From the perspective of traditional Chinese medicine, they are useful for benefiting Qi and blood, warming the stomach and spleen, nourishing skin and beauty, and nourishing the liver and kidneys, so they can be consumed in moderation.