Since the majority of the immune system resides in the GI tract, it is imperative to maintain a healthy gastrointestinal system during cold and flu season. (liveinthenow.com)
Their sensitive gastrointestinal systems make them prone to colic. (animals.mom.me)
It's fortified with antioxidants, omega fatty acids and probiotics to make sure her immune system, skin and coat, and gastrointestinal systems stay healthy and strong throughout her long life. (chewy.com)