The first menstruation of girls is recommended to eat more warm and iron-rich food, to eat a light diet, not too greasy, and pay attention not to eat cold, stimulating food. The hormonal changes in the body of girls at the onset of menstruation can easily lead to reduced appetite, so it is important to eat a light diet, including lean meat, milk, eggs, spinach, animal liver, etc. You can also eat more chicken soup, fish soup, bone broth and other warm tonic soups, more soup can be timely replenishment of water lost due to menstrual blood loss. Animal liver and spinach can be supplemented with iron, menstrual blood loss leads to a temporary reduction of iron in the body, through a reasonable diet can be supplemented in time to prevent the occurrence of anemia. Do not eat cold foods such as shaved ice, ice-cream and crab during menstruation to avoid menstrual cramps or changes in menstrual flow.