Peg Doyle March 13, 2025 Digestive Health, digestion, metabolism, probiotics, weight loss Fertilize Your Gut Like a Farmer Peg Doyle March 13, 2025 Digestive Health, digestion, metabolism, probiotics, weight loss Why build a healthy gut? By far, the most immune receptors are located in your gut. Likewise, 80-90% of your serotonin, the happy hormone, is produced in the gut.