Gas is perfectly normal and isn’t caused by milk!
Newborns’ intestines start digesting milk right away after the first feedings. This new sensation may make babies uncomfortable for the first few days. They may squirm or cry and often have lots of gas. They may need to be calmed and comforted in their parents’ warm arms.
Even as they get older, most infants will continue to have a lot of gas. Some babies burp less and expel air this way instead. If gas is making your baby uncomfortable, try to soothe her in your arms, shifting her position or moving her legs.