Pomelo is a common fruit in life, pomelo bitter if not spoiled, generally can be eaten. Because pomelo contains naringin, this component will have a bitter flavor, pomelo skin also exists naringin flavor, if the pomelo outer skin of the juice accidentally splashed on the flesh of pomelo, may also lead to pomelo has a bitter taste. If the grapefruit is not spoiled, it can be consumed appropriately. If the bitter taste of grapefruit is caused by the deterioration of the pulp inside, it is not recommended for patients to eat, because the deterioration may lead to diarrhea, abdominal pain and other symptoms of food poisoning. If you feel unwell after consuming grapefruit, you should seek medical attention promptly.