Diet, Microbiome, and Health from Adolescence to Aging: Knowledge Discovery Using Artificial Intelligence and Development of a Chatbot Nutrition Pilot

Objective: Our project aims to use Artificial Intelligent (AI)-based methods to address overlooked issues in adolescent nutrition/diet and microbiome, and to identify biomarkers and risk factors that affect long-term health outcomes. Hypothesis: Many diseases, including diabetes, dementia, and Alzheimer’s disease, are linked to microbiome dysbiosis and diet-related risk factors, which can develop during adolescence and influence health outcomes throughout adulthood. Methods and Data: We conducted a systematic literature review on observational, clinical, and laboratory data to examine the relationships among diet quality, nutrition component, microbiome profiles, and energy expenditure, and their effects on behavior and health outcomes/diseases across adolescence, adulthood, and elderly populations (65+ yrs). We designed an analysis workflow to systematically extract and categorize data. Using AI-based methods we constructed knowledge models to uncover the relationships among key concepts on nutrition, diet, microbiome, genetic factors, age, sex, socioeconomic factors, and disease outcomes. Using the citations from PubMed literature, the Dietary Guidelines for Americans, and recommendations from authoritative health organizations, we developed a novel ChatGPT-based chatbot platform, Teen Fuel Up, designed to provide teens with real-time assistance to published knowledge about diet and nutrition. Conclusions: AI-based methods are highly effective in knowledge discovery and health promotion, identifying connections between adolescent nutrition, the microbiome, and chronic diseases later in life, as well as their differences using sex as a biological variable to increase scientific understanding of conditions that are specific to women. We will continue developing the ChatGPT-based chatbot to provide real-time cited knowledge that adapts to the evolving dietary needs of individuals. National Institute of Allergy And Infectious Diseases of the National Institutes of Health, grant number R01AI130460 and U24AI171008, and CPRIT award RP220244. This abstract was presented at the American Physiology Summit 2025 and is only available in HTML format. There is no downloadable file or PDF version. The Physiology editorial board was not involved in the peer review process.