There is no uniform rule on how much formula a 2-year-old baby should drink in 1 day, and it can vary greatly from baby to baby, individually. However, in general, it is recommended that babies consume 300-400mL of milk powder in 1 day. 2 year old babies need energy for daily growth and development, which should meet the requirements of 5 areas, including basal metabolism, the special power effect of food, exercise needs, growth and development needs, and excretion consumption. For a 2-year-old baby, the daily energy requirement is 100-120 kcal per kg of body weight. 2 weeks old baby’s standard weight is 12 kg, so the daily energy requirement should be 1200-1440 kcal. However, at the age of 2, the baby’s teeth have basically come out and the baby’s diet is gradually transitioning from that of an infant to that of a child, so at this time, the baby should not use formula as the main food, but should gradually add some solid foods and use formula as a supplement. It is recommended that babies can have 3 main meals and 2 formula meals daily. For the growth and development of babies, the intake of protein, fat, sugar, vitamins, trace elements, fiber and water should be balanced and sufficient. For solid food, the first thing is high quality protein, such as beef and lamb, seafood, eggs and milk. Also consume some calcium-rich foods, and some nuts are usually recommended for babies. Babies are recommended to eat more fresh vegetables and fruits, such as apples, tomatoes and potatoes. Eating some solid foods can not only provide various nutrients needed for the baby’s growth and development, but also promote the development of teeth, stimulate the mouth to secrete salivary amylase, and help improve the baby’s gastrointestinal tract function.