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Digestive HealthscFOS From NutraFlora®Dietary SupplementVegetarian Prebiotic Fiber Promotes Healthy Microflora in The Digestive SystemNourishes Probiotic Organisms to Help Them FlourishScience-Backed Quality Since 1969VeganSwanson Prebiotic for Friendly Flora Support with FOS from NutraFlora® is a pure source of prebiotic nutrition supplying 95% fructooligosaccharide content that feeds beneficial bacteria in the intestinal tract so it can thrive. Just one gram per day can increase your friendly bacteria count by 500% in just four weeks.