The PHAGE study is designed to determine if a commercial prebiotic product can change the composition of bacteria in the gut for improved intestinal health. A prebiotic is defined as an indigestible dietary component that selectively enhances specific bacterial species in the intestines to confer a health benefit. In this study, the prebiotic a unique combination of bacteriophages, or viruses that infect bacteria. These phages are generally regarded as safe for human consumption and work by infecting bad bacteria in the gut, which allows beneficial bacteria populations to increase. The product, PreforPro, has shown to be effective in culture-based and animal studies, but its efficacy has not been demonstrated in humans. The goal of this study is to see if PreforPro consumption improves gut bacteria profiles in individuals relative to a placebo control and is associated with reduced incidence and severity of gastrointestinal distress.