Infants who have eaten too much food often show symptoms such as loss of appetite, bad breath and depression. 1. Loss of appetite: generally, infants who have eaten too much food may suffer from abdominal distension, accompanied by flatulence, which may lead to a reduced desire to eat and poor appetite. 2. Bad breath: If the baby eats too much food, the food may accumulate in the stomach and intestines and cannot be digested properly, resulting in indigestion, which leads to bad breath, especially in the early morning when the symptoms are more obvious. 3. Mental depression: Usually, the accumulation of food in infants will affect digestion and absorption, resulting in the body not being able to get enough nutrients, which in turn leads to mental depression in infants. In addition, it is important to note that there may be other symptoms associated with food retention in infants, so it is recommended to actively seek medical attention to identify the cause of the problem and treat it appropriately.