There are generally no special contraindications to the types of fruits eaten at night, except for allergic fruits. Fresh fruits are 85% to 90% water, rich in vitamin C, potassium, magnesium and dietary fiber (cellulose, hemicellulose and pectin). The sweetness and nutrient content vary from fruit to fruit. Variety and seasonal fruits are the basic principles for selecting and purchasing fruits. Moderate consumption of fruits at night can provide the body with essential water and nutrients, which is beneficial to health. However, fruits usually contain high levels of sugar, including fructose, glucose and sucrose. Fruits with high sugar content have higher energy, and people who need to control their dietary energy intake are advised to choose fruits with lower sugar content. People with diabetes need to strictly control their fruit intake.