Your gastrointestinal system (AKA your gut) is made up of both good and bad bacteria. It is the balance between the two that helps keep things running smoothly. This microbiome is more than just the system that digests your food. Your gut is home to around 70% of your immune system. The gut is often referred to as the second brain and is responsible for creating 90% of serotonin. Gut health applies to everyone, but it is essential during pregnancy. It can potentially impact things like group B strep, your risk for preeclampsia, and even help with constipation. Probiotics are the key to making sure you have the right balance of bacteria and that you have a healthy gut. Learn what probiotics are, how to incorporate pregnancy-safe probiotic-rich foods in your diet, the risks and benefits of a probiotic supplement, and how to choose the right one.