1, Apple: Apple is rich in vitamin C and fiber, which is beneficial to maintaining oral health and normal function of digestive system. In addition, apples also contain antioxidants, which help to improve immunity.

Banana: Banana is rich in magnesium, potassium and vitamin B6, which helps to provide lasting energy and prevent muscle fatigue. Bananas can also help digestion and regulate blood pressure.

3, grapefruit: grapefruit is rich in vitamin C and antioxidants, which helps to enhance immunity and resist infection. It also has the functions of lowering cholesterol and promoting digestion.

4. Strawberry: Strawberry is a low-sugar fruit, rich in vitamin C and antioxidants, which helps to protect skin health and improve immunity. Strawberries are also rich in fiber, which helps digestion and maintain satiety.