Think of your gut microbiome as a vast, invisible ecosystem living inside your digestive tract. It is made up of trillions of microorganisms, including bacteria, viruses, and fungi. This ecosystem plays a critical role in your overall health—affecting everything from how you digest food and absorb nutrients to how your immune system functions and even how you feel mentally. Unlike your human DNA, which is fixed, your microbiome is dynamic and can be improved through specific changes to your diet and lifestyle.
