Lactobacillus rhamnosus GG (LGG®) - the ingredient in Culturelle® Kids Daily Probiotic Packets - is clinically proven to help reduce occasional tummy troubles (like diarrhea and occasional digestive upset) by helping to restore the balance of good and not-so-good bacteria in children’s digestive systems. From the #1 Pediatrician Recommended Probiotic Brand, Culturelle® Kids Daily Probiotic Packets actually help your child’s digestive tract to work better and supports a healthy immune system when taken regularly.