There is no absolute contraindication to take black wolfberry, but it should be noted that should not be eaten too much, black wolfberry allergy is prohibited. Black wolfberry has a certain nutritional value, each 100g contains carbohydrate 65.3g, protein 14g. moderate eating can supplement the body part of the nutrients needed. But the diet need to pay attention to do not recommend eating too much black wolfberry, if a short period of time excessive consumption of black wolfberry, may stimulate the gastrointestinal tract, causing bloating, diarrhea and other uncomfortable symptoms. Allergic to black goji berries are prohibited, so as not to induce diarrhea, rash, skin itching and other allergic reactions. Any discomfort in daily life need to seek medical treatment in a timely manner, to be under the guidance of a professional doctor, give the appropriate treatment to avoid delaying the condition.