The nutritional level of vegetables follows the law from deep to shallow, and the general trend of its arrangement order is: black, purple, green, red, yellow and white. Among the same vegetables, dark varieties are more nutritious than light varieties. The most easily overlooked food on our table is the purple food next to black, including purple eggplant, purple corn, purple onion, purple lentil, purple yam, purple cabbage, purple pepper, purple carrot, purple okra, purple chicory and purple asparagus.

Purple food is a good helper for women's health.

Purple vegetables contain anthocyanins, which are the most special substances. Anthocyanins not only have strong antioxidant capacity, prevent hypertension and slow down liver dysfunction, but also have the effects of improving vision and preventing eye fatigue, which is recognized by many people. People who use computers or read books for a long time should take more. Among purple foods, blueberry has the highest anthocyanin content, followed by purple carrots and purple grapes.

In addition, people who want to lose weight should eat more purple food, because purple food can appropriately suppress appetite.