I wanted Evivo to be for us like it was for all the other positive reviewers. Unfortunately, this was not the case. My son was born and went to the NICU. They put him on a 48 hour antibiotic protocol. This concerned me because, I thought this had wiped out his gut bacteria. We ordered Evivo when he was a month old because he was pretty gassy but, he was having normal bowel movements. Once we started this he got worse. Squirming and crying in pain. I figured let me give this some time maybe, it is pushing the bad out. We had follow up at pediatrician. He was red faced and constipated. He managed to squeeze out 3 hard balls of fecal matter in the week that he was on evivo. I felt so bad for him. Pediatrician told us to stop immediately. We stopped and within one day he was back to normal. No more hard stool. No more painful gas. Oh and he is a breastfed baby and it was mixed with breast milk. Followed everything to a T. No good for my son.