Groundnut even if the rotten part of the removal, the remaining part is not recommended to eat, because the food has been bad for a period of time, appearing to be exposed to the rot, although it can be removed, but the bacteria that grow inside may have produced a certain amount of toxic substances. Groundnut is rich in carbohydrates, dietary fiber, vitamin E, vitamin B1, vitamin B2, potassium and other nutrients, groundnut part of the place after rotting, usually become soft, rotten, etc., not only its nutrients were destroyed, the taste also changed and even have a bitter taste. A large number of germs will grow and multiply both on the surface and inside of the groundnuts, and may produce certain toxic substances, which may gradually spread to other parts of the groundnuts, and are difficult to be removed completely. Therefore, even if the rotten part of the groundnut is removed, it is not recommended to eat the rest of the groundnut, otherwise it may lead to toxic substances entering the human body, resulting in a series of adverse reactions such as diarrhea and abdominal pain. If you have already eaten it and experience diarrhea or abdominal pain, consult your doctor as soon as possible.