Usually babies can eat egg yolks after 7 months of age, but the exact time varies from person to person, while observing whether the baby has any allergies. Egg yolk is rich in protein, lecithin, minerals, vitamins and other nutrients, which are beneficial to the growth and development of babies. It is usually recommended that babies start to add egg yolk after 7 months of age. Generally speaking, the supplemental food added should be rice flour, rice paste and other easily digestible food, and when the baby’s gastrointestinal ability is gradually strengthened, then start to add egg yolks, usually after 7 months. When adding egg yolk to your baby at the beginning, always observe your child for symptoms of diarrhea, abdominal pain and other allergies. In conclusion, generally babies can add egg yolk after 7 months, it is recommended to follow the principle of feeding from less to more, step by step.