Potatoes with black spots in the center should generally not be eaten to prevent food poisoning after consuming spoiled potatoes. It is recommended to eat fresh potatoes. Black spots in the center of potatoes are mainly due to spoiled potatoes, which are usually inedible. Because the potato spoiled not only the nutrients will be lost, and human consumption may also appear nausea and vomiting, abdominal pain, diarrhea and other food poisoning performance. Usually you can choose to eat fresh potatoes, do not eat sprouted, blackened potatoes. Generally 100g of potatoes contain 79.8g of water, 334KJ of energy, 2.0g of protein, 0.2g of fat, 30.0mg of carotene, 17.2g of carbohydrates, 0.08mg of thiamine, 27.0mg of vitamin C, 1.10mg of niacin, and 0.37mg of zinc and other nutrients. Moderate consumption of potatoes can supplement some of the nutrients for the body, usually black spots in the middle of the potato more means that the potatoes appear to be corrupt, it is not recommended to continue to eat.