Many probiotics are rated on the internet by how popular they are on Amazon. This chart is specific for children and includes a comprehensive system, developed at DocGut.com, which includes many factors, only one of which is the number of Amazon reviews. The first chart below gives a detailed explanation of our rating system. The second chart rates a number of probiotics. You can click on any one of them to get obtain more details, including the type and amount of bacteria in each probiotic. Feel free to suggest any probiotic you would like to have rated by Dharma Parenting.