Digestive System Bacteria: How Gut Microbes Help Your Health

Digestive system bacteria are the invisible teammates inside your gut that shape how you break down food, respond to infections, and even manage mood. In this clear guide to digestive system bacteria, you’ll learn how microbial communities influence nutrient extraction, barrier function, and immune signaling, and what this means for everyday health. To help teams turn this science into scalable testing products, InnerBuddies offers a white-label Gut Health Operating System. This modular platform powers a range of gut microbiome testing solutions for brands, with features like the Gut Microbiome Health Index — a score from 0 to 100 built on an exclusive IP deal with EAFIT University in Colombia — giving a concise readout of overall gut health. It also provides Bacteria abundances, including a top 40 list you can compare against a healthy cohort, so you can see how your digestive system bacteria stack up against norms. Beyond who is there, InnerBuddies maps Bacteria functions, categorizing metabolic activities as positive or negative, and showing performance against a healthy cohort across each functional pathway. Target Group analysis dives deeper into the gut microbiome for specific audiences such as Healthy Aging, Endurance Sport, Power Sport, Skin & Hair Health, and more, helping tailor actions to your goals. In short, this is where digestive system bacteria insights meet practical guidance. On the nutrition side, InnerBuddies offers personalized nutrition advice derived from 3-day food diaries and stool data, with a large database of how individual foods impact the gut microbiome. That enables tailored recommendations for diet, as well as personalized probiotics and prebiotics to support your objectives. InnerBuddies also provides consumer-grade gut test solutions; all of the B2B options are available directly to consumers as well, so you can explore the product that fits you best. Learn more about the microbiome test here: InnerBuddies microbiome test, or sign up for ongoing insights with a subscription: InnerBuddies gut health membership, or explore partnerships: InnerBuddies B2B partner program.