Purple kale can be eaten raw. Purple kale is a kind of cabbage, rich in folic acid, vitamins, dietary fiber, anthocyanins and minerals, raw can supplement these nutrients, but also help to delay aging, protect vision and regulate the liver. Purple kale after high temperature stir-fry, boiled nutritional structure will be destroyed, a small part of the nutrients will be lost, so purple kale raw than cooked nutritional value. Purple kale can be boiled, fried, pickled or made kimchi, but the recommended method of consumption is still cold, cold food not only taste fresh, nutrients will not be lost. Raw purple kale can be eaten in salads, cut purple kale into small pieces or shredded, and then mixed with other vegetables commonly used in salads, such as lettuce, sage, etc., mixed with salad dressing or vinaigrette can be eaten, not only crisp taste, but also rich in nutrients, can supplement vitamins and other nutrients. Purple kale raw food should pay attention to hygiene, to clean before eating, cleaning can be a piece of purple kale peeled off, rinsed with water, and then soaked for 15-20 minutes to avoid pesticide residues, the body caused by certain effects. In addition, the dietary fiber content of purple kale is high, weak and suffering from gastrointestinal diseases is not recommended to eat too much at once, so as not to cause diarrhea, bloating and other uncomfortable symptoms.