The January Application NUtritional Study (JANUS)

Human beings react differently to changes in diet, exercise, and sleep patterns. The goal of this study is two-fold and consists of two phases involving the same subjects. In the first phase, the study aims to learn how individuals react to lifestyle choices and suggestions by examining a small group of people with similar health and lifestyle profiles. Specifically, how their food choices, physical activity pattern, sleep pattern, and stress levels affect glucose metabolism, stress response, inflammation, and microbiome composition. In the second phase of the study, the investigator's goal is to use the data collected to develop algorithmic policies that will help people optimize their health through lifestyle interventions and supplementation with prebiotics. The ultimate goal is to achieve optimization of glucose and stress regulation, inflammation state, and microbiome composition by observing real-time variations of these regulatory systems through the use of wearable health-monitoring devices and providing lifestyle suggestions via a mobile application.