Recently on Thrive, we have focused a lot of probiotics and their role in optimum gut health.  But here's a little more info on prebiotics, where they come from, why they're important and how much we need. If you think of probiotics as good seeds that you sprinkle into your gut to keep it healthy. PREBIOTICS are like the fertilizer that ensures the seeds proliferate. So including prebiotic foods in your diet is pretty important to create a sustainable little ecosystem of healthy bacteria in your gut.