The human gut contains billions of bacteria, most of which are beneficial to our digestive and immune systems. They help us to digest our food, absorb nutrients, metabolise drugs, prevent inflammation, and provide a barrier to disease-causing pathogens into the body. These ‘good’ bacteria balance out the more toxic and damaging bacteria which are also present in the gut. Sometimes this balance may be lost (such as after a course of antibiotics), causing a range of symptoms. Knowing your gut type, taking probiotics and making dietary changes are steps you can take to maintain a healthy gut bacteria balance.