Does drinking too much foremilk cause a baby to spit up more?

Yes, drinking too much foremilk can cause a baby to spit up more. Foremilk, which is the milk produced at the beginning of a feeding, is higher in lactose and lower in fat compared to hindmilk. If a baby consumes too much foremilk without getting enough hindmilk, it can lead to digestive discomfort and increased spit-up due to the rapid intake of lactose. Balancing the feeding to ensure the baby gets both foremilk and hindmilk can help minimize this issue.