1, the most suitable in the morning: apples, pears, grapes, and fruits. If you choose to eat fruits in the morning, it is most effective for the human body, which can give full play to its nutritional value and produce substances beneficial to human health. This is because, after a night's sleep, the gastrointestinal function is still activated, and the digestive function is not strong, but it needs to be supplemented with enough nutrition. At this time, eating easily digestible fruits can meet the nutritional needs of work or study activities in the morning.

2. Do not eat before meals: cherry tomatoes, oranges, hawthorn, bananas and persimmons. It is best to choose fruits that are not too sour and astringent, such as apples, pears, bananas and grapes. People with poor gastrointestinal function should not eat fruit at this time.

3, after meals should be selected: pineapple, papaya, kiwi, orange, hawthorn. Bromelain contained in pineapple can help digest protein, supplement the deficiency of human digestive enzymes and enhance digestive function. In Compendium of Materia Medica, Li Shizhen also affirmed that pineapple can strengthen the spleen and stomach and strengthen vitality.

4, nightingale soothe the nerves: eating longan, eating fruit at night is not conducive to digestion, and because the fruit contains too much sugar, it is easy to cause excess calories, leading to obesity. In particular, eating fruits with high fiber content before going to bed will affect sleep, which is even more harmful to people with poor gastrointestinal function. But if you don't sleep well, you can eat a few longan, which can soothe your nerves and help you sleep.