Is 100-200 million CFU/day of Lactobacillus reuteri enough to achieve an effect?

Based on the results of clinical studies, the dose level of 100 million CFU/day has been chosen as a safe and efficient dose for Lactobacillus reuteri Protectis. The corresponding dose for Lactobacillus reuteri Prodentis and Gastrus is 200 million CFU/day.