Apples are a common fruit, rich in many vitamins, minerals and dietary fiber, and their consumption can help the body obtain a variety of nutrients. There is no strict time limit for eating apples, so ordinary people can eat them whenever they want. However, people with gastrointestinal disorders and diabetes need to pay attention to the time of consumption. Apples are best consumed by the general population in the morning on an empty stomach. Because energy is consumed at night when resting, the body absorbs nutrients faster after waking up. Apples are rich in fructose, vitamins and other nutrients, which can help the body quickly replenish sugar and nutrients. The pectin in apples can also promote gastrointestinal peristalsis to a certain extent, helping digestion and relieving constipation, so apples can be eaten at breakfast. Patients with gastrointestinal dysfunction are recommended to eat apples 1-2 hours after meals, which can promote gastrointestinal peristalsis to help digestion and avoid stomach bloating caused by oversupport. Avoid eating on an empty stomach. Apples contain fruit acids, which can stimulate the stomach and increase the burden of the patient’s stomach when consumed on an empty stomach. In addition, it is not recommended to eat apples before bedtime. Apples are rich in dietary fiber and easy to feel full after eating, so eating before bedtime will affect sleep. Diabetic patients need to eat apples in moderation between meals when their blood sugar is stable, and they should also pay attention to controlling their intake to avoid excessive consumption that leads to elevated blood sugar. Weight loss people can eat apples before meals, apples are low in calories and can be used as a meal replacement fruit, bringing a certain sense of satiety and reducing other food intake to achieve the purpose of weight loss.