First of all, eating only one meal a day will reduce the overall calorie intake, but this method may lead to the body gradually adapting to this eating pattern and slowing down the metabolic rate. In addition, drinking beer when you are hungry will actually increase your hunger, because alcohol in beer may stimulate gastric juice secretion by gastric parietal cells. The more gastric juice is secreted, the easier it is to feel hungry. In this way, the total calorie intake of the body is not small, which is not conducive to weight loss.

Secondly, drinking beer at night will interfere with sleep and affect the hormone balance in the body, which may cause the body to store more fat the next day. In addition, due to lack of enough exercise, the body can't consume all the calories, which may also lead to weight gain.

To lose weight, diet and exercise are the key. It is recommended to eat a balanced diet, eat more vegetables, fruits, coarse grains and high-protein foods, and avoid foods high in sugar, fat and calories. At the same time, keep moderate exercise, such as brisk walking or jogging every day, to help burn more calories. If you need to seek specific weight loss programs and health guidance, it is best to consult a professional doctor or dietitian.