– Overfeeding (Breastfeeding makes it difficult to overfeed, but formula-feeding could be the cause of this.)
– The amount of food consumed per feeding is larger than 4-6 ounces if the baby is bottle-fed (120 to 180 ml)
– The baby is gaining excessive weight (800-1500 grams in a month is normal weight gain).
– Your baby has loose, watery feces eight or more times a day. After a full feeding, your baby vomits most of the food. (It’s worth noting that breastfed babies have much more frequent and loose feces than formula-fed newborns.)