Sprouted sweet potatoes can theoretically be eaten, but it is not recommended. Sprouted sweet potatoes do not produce toxic substances such as lobelia toxin as potatoes do, and no food poisoning symptoms will occur. But its nutritional value has been far discounted, because the sprouting itself is needed to consume sweet potato nutrition. At the same time, after the sprouting of sweet potato taste will be correspondingly worse, will not have the quality of the unsprouted before. One potential hazard of sprouted sweet potatoes is the possibility of mold at the same time. Because of the dark color of the sweet potato surface, mold is sometimes difficult to detect. When sweet potatoes become moldy, they may be contaminated with aflatoxins or trichothecenes. Aflatoxin belongs to a class of carcinogens, so as a precaution, even if the surface of the sprouted sweet potato does not look moldy, it is not recommended to eat again. Sweet potatoes are recommended to be eaten as soon as possible after purchase to prevent sprouting and mold.