The supplementary food added must be suitable for the age of the baby. For 4 to 6 months, you can add rotten porridge, egg yolks, fruit puree, or thin noodle soup with chopped vegetables and a little cooking oil. From 7 to 12 months, soft noodles, egg custard, tofu, wontons, various chopped vegetables, fish, lean minced meat, etc. can be added. Start with cereals and transition to vegetables, fruits, fish, meat, poultry, eggs, soy products, etc. You can also choose some nutritional supplementary food products for infants and young children as supplements.