Here is something that might surprise you — about 70 percent of your immune system lives in your gut. Not in your bloodstream, not in your chest, not somewhere vaguely “inside you.” Your gut. And once that clicks, a lot of things start making more sense. Your gut contains trillions of microorganisms, bacteria, and fungi. Together, they form a gut microbiome, and their work is beyond processing what you eat throughout the day.
For more information: https://www.yakult.co.in/blog/the-gut-immune-connection-how-digestive-health-supports-immunity/