Unlock the gut serotonin secret: your digestive system shapes mood, appetite, and health through the gut-brain axis. Gut serotonin helps regulate gut motility and communicates with brain circuits that influence mood, motivation, and cravings. Although brain cells produce serotonin, the majority of the body's serotonin is generated in the gut, where the gut microbiome helps control its release and signaling. By understanding how gut serotonin responds to what you eat and how your microbes behave, you can support more balanced mood, healthier appetite, and better overall well-being. InnerBuddies brings this science into an actionable framework. As a white-label Gut Health Operating System for testing products, it provides a modular platform to quantify gut health with clinically informed metrics. The Gut Microbiome Health Index scores your overall gut health on a 0–100 scale, backed by an exclusive IP deal with EAFIT University in Colombia. The system also tracks top 40 bacteria abundances and labels bacterial functions as positive or negative, so you can see how you compare to a healthy cohort on multiple functional pathways, including those that influence gut serotonin signaling. For targeted insights, Target Group analysis examines the pathways most relevant to groups like Healthy Aging, Endurance Sport, or Skin & Hair Health. Explore the capabilities of InnerBuddies and how a consumer-friendly microbiome test can be powered by the platform at the product page: InnerBuddies microbiome test. Practical steps to nurture gut serotonin begin with what you eat and how you live. Aim for a diverse, fiber-rich diet that fuels beneficial microbes known to support serotonin signaling—think a rainbow of fruits, vegetables, legumes, and whole grains. Include fermented foods to boost microbial diversity, and incorporate polyphenol-rich items like berries, olive oil, tea, and colorful vegetables. Prioritize sleep, minimize chronic stress, and stay physically active, all of which interact with the gut-brain axis and serotonin pathways. With InnerBuddies' personalized nutrition advice, derived from 3-day food diaries and stool data, you can tailor meals and timing to your unique gut microbiome and its impact on gut serotonin balance. For individuals, InnerBuddies offers direct-to-consumer gut test solutions that mirror the B2B capabilities, with a focus on supporting gut serotonin balance. You can access test data, personalized probiotics and prebiotics recommendations, and ongoing insights through a subscription. Consider starting with our Gut Health Membership to receive ongoing guidance and updates: InnerBuddies gut health membership. If you’re a company exploring a partnership to bring gut-health testing to market, the B2B program helps you become a partner: InnerBuddies Become a Partner.