The main reason for rapid weight loss after depression is that depressed patients’ appetite, especially the function of the gastrointestinal tract, is affected by long-term depression and other problems, which usually results in a decrease in appetite leading to a decrease in food intake. Especially in moderate depression, there are many physical symptoms, such as gastrointestinal symptoms, poor digestive function, feeling bloated when eating or even more serious nausea, vomiting, feeling very supported after eating very little food, vomiting, and even refusing to drink or eat because of this matter and depression, which is why there is weight loss and rapid weight loss, so if there is depression And also weight loss should be considered as moderate depression or more.