Babies can usually eat egg yolks after 7 months of age, provided that they are not allergic to egg yolks. Babies at the age of 6 months have usually started to add complementary foods. Egg yolks contain lecithin and other nutrients that can be a good source of nutrition, but it is generally recommended to try egg yolks after babies are 7 months old. However, egg yolks may also cause allergic reactions in some babies, so add egg yolks in small amounts to start with. During the addition process, watch out for symptoms such as rash, diarrhea and nausea. Due to individual differences in babies, the time to add egg yolk will be adjusted accordingly. Note that at first you can start adding complementary foods to your baby from rice pudding, follow the principle from thin to thick, from less to more, so that your baby can adapt gradually. After getting used to adding one food, then add another. It is recommended that once the baby eats egg yolk after the allergic situation, the need to immediately stop adding, and timely medical treatment.