A six-month-old’s milk supply of only 120 milliliters is on the low side, and the daily nutrients needed by the baby can be supplemented by adding complementary foods as appropriate. A six-month-old baby’s milk supply is about 800 to 1,000 milliliters a day, and the amount of milk at one time is about 150 to 200 milliliters. If your baby’s milk volume is 120 ml, you can add some complementary foods to your baby appropriately, choosing foods that are easy to absorb, can satisfy growth needs, and are not prone to food allergies. The first addition is to contain iron fortification of rice flour, followed by the introduction of food root tubers vegetables, fruits, can be supplemented with vitamins, minerals nutrition, pay attention to the texture of the food, nutritional diversity, to the child to add complementary foods should be from one to a variety of, from less to more, from sparse to thick a little bit of dosage. If your six-month-old baby’s milk volume is only 120 milliliters and refuses to eat complementary foods, it is recommended that you seek medical attention in a timely manner, under the guidance of a doctor, complete the relevant examinations, identify the cause of the disease, and symptomatic treatment.