Purple kale is generally not harmful when eaten raw, and can provide the body with appropriate nutrients, such as fiber. Purple kale is a common vegetable, which contains a variety of nutrients, such as vitamins, folic acid, dietary fiber, anthocyanins, etc. Each 100 grams of purple kale contains 19 calories, carbohydrates 6.2 grams, protein 1.2 grams, 0.2 grams of fat, dietary fiber 3 grams. Eating raw purple kale is generally not harmful to the human body, but also can supplement the body with the above nutrients. As the purple kale after high-temperature frying, cooking will lead to the destruction of the nutritional structure, resulting in the loss of some nutrients, so the purple kale raw nutritional value is higher. However, it should be noted that the purple kale should pay attention to health when eating raw, to clean before eating, so as to avoid pesticide residues. Purple kale can be eaten raw, appropriate intake will not cause harm to the human body, should not be too nervous. If the symptoms of diarrhea exist, it is not recommended to consume too much purple kale, because purple kale contains a lot of dietary fiber, too much intake will aggravate the situation of diarrhea.