Banana and grapefruit can be eaten together. Grapefruit is rich in nutrients, such as vitamins, sugars, dietary fiber, trace elements and so on. Bananas are also rich in carbohydrates, crude fiber, minerals and so on. The nutrients of grapefruit and banana are not mutually exclusive, while eating in moderation has no effect on health. Pomelo and bananas are rich in nutrients and are favorite fruits, but also frequently consumed fruits. They can be consumed together but should not be eaten in large quantities at once, otherwise they may stimulate the gastrointestinal tract causing abdominal pain, diarrhea and other adverse reactions. If discomfort occurs after consumption, it is recommended to go to the hospital in a timely manner to actively seek medical treatment, so as not to delay the condition.