Eating eggplant can cause nausea because eggplant contains lycopene, a substance that is present in the flesh of eggplant. If too much is consumed, lycopene poisoning can occur, manifesting as nausea, diarrhea, vomiting and other symptoms. When eating eggplant, nausea occurs because the amount of lycopene in the body reaches the dose of poisoning due to the large amount of eggplant eaten at one time, so the poisoning reaction occurs. Eggplant contains lycopene that can cause poisoning, but the content is not very high, do not worry too much, moderate amount of food will not reach the dose of poisoning, must be fried before eating, fried content of lycopene will be reduced.