It has been said that a healthy gut means a healthy you. Nearly 70 percent of your immune system is housed in your digestive system. All food is ultimately broken down in the gut to a simple form that can enter the bloodstream and be delivered as nutrients throughout our bodies. This is only possible with a healthy digestive system. A healthy gut contains healthy bacteria and immune cells that ward off infectious agents like bacteria, viruses, and fungi. A healthy gut also communicates with the brain through nerves and hormones, which helps maintain general health and well-being.