1. It is more appropriate to eat about 5 lychees a day, with a maximum of 10. Although litchi is delicious, it is easy to get angry when eaten too much, which leads to aphtha, dry stool and bitter taste, so it is not recommended to eat too much.

2. Five lychees are about 100g. According to the book "Dietary Guidelines for China Residents", it is suggested that each person should consume 200-350g of fruit every day. After eating 100g of litchi, some other fruits can meet the nutritional needs of the body. So it is more appropriate to eat five lychees a day.