Many babies can happily drink a large bottle of formula during their monthly period, and the amount of milk they drink can reach 800 ml or more per day. However, by 2 to 3 months of age, they no longer want to drink formula, or even refuse it altogether, and their milk supply no longer increases. What is wrong with these babies? Is it “milk aversion”? In fact, there is no medical or nutritional name or definition for “anorexia”. However, the above phenomenon does exist. So what is it? What should I do? It should be noted that these “anorexic” babies are normal, except for their refusal to drink milk. They are happy when they don’t drink milk, but only look unhappy when they see a bottle. The frequency and volume of stools are reduced, but these babies have bowel movements every day or every other day. More importantly, most of these babies are within the normal weight range, and most of them have a relatively rapid weight gain before “anorexia”. For example, under normal circumstances, babies gain about 1000 g in the first month of life, while many “anorexic” babies gain more than 1500 g in the first month of life, and some even gain more than 2000 g. Therefore, the “anorexia” phenomenon can be partly attributed to the baby’s “self-adjustment”. The previous phase of growth was too fast and the pace needed to be temporarily adjusted. At the same time, as babies grow, their ability to control themselves increases, and a few sensitive, fussy babies are particularly uncomfortable with overfeeding. In addition, when the baby drinks less milk and cries, the mother cannot help but feel anxious. And when a mother forces her baby to drink milk with anxiety, it intensifies her baby’s aversion to drinking milk. When your baby’s milk supply decreases, the first thing you need to do is to check if your baby has a fever, is not feeling well, and other signs of illness. If everything is fine, then the mother should see if the baby’s weight is growing well. The average weight gain for a normal full-term baby is about 1,000 g per month for the first three months of life and 500 g per month for the next three months, so if your baby is gaining weight well, you really don’t need to worry about how much milk your baby is drinking. When your baby’s milk supply decreases, the most taboo thing is for mothers to force their babies to drink the amount of milk they have set for themselves. Many mothers will make their babies drink all the milk in the bottle for an hour, and many mothers feed their babies confused milk when they are fast asleep, or even continue to give them milk in the middle of the night, which will only backfire and make them fearful of drinking milk and completely lose interest. In fact, mothers can let nature take its course and continue to feed on time, but don’t get too hung up on how much your baby has drunk. Feeding can be done at 2-3 hour intervals during the day, and at night at 4 hour intervals or more. Don’t be too concerned about how much milk your baby drank each time, but just feed patiently for about 15 minutes. If after 15-20 minutes of patient feeding, your baby does not want to drink, there is no need to force it. Most babies can resume their normal milk supply in about 1 week. Finally, a special reminder that babies really don’t have as much milk as indicated on the formula cans. After the first month of life, the amount of milk is about 110 ml per kg of body weight, which means that a baby weighing 6 kg will have about 650 ml of milk a day. Most babies between 1 and 4 months old have between 600 and 900 ml of milk per day.