Obesity and Diabetes Mellitus, Type 2

The purpose of this clinical trial is to find out whether one type of fish oil works better than another at improving metabolic health in people who are at high risk of developing type 2 diabetes. Some metabolic problems-such as difficulty controlling blood sugar, unhealthy particles that transport cholesterol in the blood, and poor fat tissue function-can increase the risk of type 2 diabetes. This study aims to determine whether different types of fish oil can: 1. Improve how well the body produces insulin and responds to it, 2. Improve the quality of the particles that carry "bad" cholesterol in the blood, and 3) Improve the health and function of participants' fat tissue. To answer these questions, researchers will compare the effects of two types of fish oil: EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). These will be compared with corn oil, which is used as a placebo and does not contain EPA or DHA. When included in this study, participants will: A) Take softgel capsules containing EPA, DHA, or placebo (corn oil) every day for 12 weeks, B) Keep a daily log to record when they take their study softgels, and C) Visit the research unit six times, including one and a half days before and after the intervention, to complete specialized metabolic tests that are mostly only available in research settings.

Hispanic adolescents in the U.S. are disproportionately burdened by type 2 diabetes (T2D) compared to non-Hispanic white youth (0.079% vs. 0.017%) contributing to higher rates of T2D-related vascular complications, cardiovascular disease, and mortality, among this population. Disparities in T2D are driven in part by independent, modifiable risk factors including low levels of physical activity, sleep, and poor diet. Lifestyle interventions are the cornerstone for maintaining glucose control and managing T2D. However, few studies have developed and tested lifestyle interventions for Hispanic youth with T2D. Digital health interventions that promote healthy lifestyle behaviors like physical activity, sleep, and diet, have demonstrated effectiveness among adults. Studies that use health-based smartphone applications have demonstrated preliminary efficacy for improving health-related lifestyle behaviors as these digital tools leverage behavior change techniques (e.g. self-monitoring, goal-setting, feedback) that have proven effective. Use of digital technology allows for the continuous delivery of intervention content into the home environment extending the reach of clinical care while engaging youth in a format that is age-appropriate given that today's youth are digital frontrunners. Unfortunately, while the use of digital health interventions have increased, few studies have focused on adolescents with overweight and obesity who are at high risk for T2D. The purpose of this study is to 1) develop a mobile health platform for remote and continuous monitoring of activity, sleep, and nutrition and 2) conduct a pilot study (30 days) to evaluate the efficacy of a novel digital health platform in improving obesity-related health outcomes outcomes in Hispanic adolescents (12-18 years; N=30) population.