2, but eat in moderation, not too much, because bananas and watermelons are cold fruits. If you eat too much, it is easy to accumulate cold in the body, causing gastrointestinal discomfort and adversely affecting the health of the spleen and stomach.
Bananas and watermelons are rich in water, cellulose and vitamins, and also contain a lot of carbohydrates and minerals, which are easy to digest. Proper consumption at ordinary times will be beneficial to your health, but you must avoid excessive consumption and try to eat separately. For example, you can eat watermelon about two hours after eating bananas, which will be better.