Hi Chelsea- It can a bit of time for a baby to adjust to new formula. If you are concerned with digestive issues we highly recommend talking to your pediatrician.  

I’m here for this reason as well. We switched to ByHeart from Bobbie and my son who doesn’t even spit up has projectile vomited 3 times after ByHeart :( 

It can take a bit of time for a baby to adjust to a new formula (and the exact transition timeline is totally dependant on the baby!), but if you have any concerns about baby’s spit up levels, we recommend reaching out to your pediatrician. 