Fresh unaltered bananas and potatoes can be eaten together, but if the bananas or potatoes are spoiled, it is not recommended to eat them together. Fresh bananas contain sugars, pectin, vitamin C, magnesium, iron, zinc, calcium, potassium and other nutrients, and fresh potatoes contain starch, riboflavin, fat, dietary fiber, iron, calcium and other nutrients, and there is no conflict between the two components, there will be no reaction, you can eat together. Eating both together can provide the body with rich nutrients. However, consuming spoiled bananas or potatoes is prone to toxic reactions. Consumption is not recommended. Potato sprouting will produce a large amount of lobelia, lobelia disorder is corrosive, stimulating the mucous membrane of the gastrointestinal tract. Lobelin toxicity, mild nausea, vomiting, abdominal pain, diarrhea and other symptoms; severe cases will be convulsions, shock, respiratory distress and coma. Bananas are high in sugar and prone to mold, and improper consumption can easily lead to diarrhea, vomiting, high fever and other food poisoning reactions. If you consume spoiled potatoes or bananas improperly, you should seek medical attention and symptomatic treatment.