Our gut microbiomes—those 3-5 pound communities of bacteria and other bugs that live in our intestines—have recently been under siege by modern diets high in sugar and low in fiber, antibiotics and other drugs, and environmental toxins. But even when diets were much healthier and environments far cleaner, traditional cuisines included probiotic foods that bolstered gut health.Sauerkrauts, pickles, yogurt, kefir, miso, and many other fermented/cultured foods supplied our ancestors with healthy microflora (probiotics) at 10-20 billion live and healthy organisms daily. Indeed, our bodies evolved to live in a healthy, symbiotic relationship with microbes. These helpful bugs that we call probiotics have been with us since time immemorial, protecting and enhancing our resilience and resistance by competing for space inside our bodies with any harmful pathogens to which we might become exposed, thus preventing them from becoming established and proliferating. Revered physicians throughout hi…