Potato sprouts can not be eaten. Potato’s common name is taro, taro is a common ingredient, taro tubers contain protein, starch, vitamins, dietary fiber and other nutrients, eaten in moderation can provide the body with the nutrients the body needs, has a certain nutritional value. However, the long shoots of the taro contains longanine, this substance is a weak alkaline glycoside, the human body has a certain degree of toxicity, excessive intake will cause nausea, vomiting, diarrhea, abdominal pain and other symptoms of toxicity, serious cases will also endanger the patient’s life. Even after high-temperature cooking, long shoots of yams in the still exist a large number of longanine. Therefore, long sprouted potatoes are not recommended to eat, so as to avoid poisoning.