The Effects of Gastric or Duodenal Nutrient Infusion on Food Intake, Obesity and Comorbidities in Obese Individuals

This pilot study will look at whether infusion of nutrients into the duodenum or into the stomach will result in: 1. decrease in hunger and food intake 2. greater weight loss due to loss of body fat with reductions in waist and hip circumferences 3. improvements in other weight-related health conditions such as diabetes, high blood pressure, and high blood triglycerides. Inclusion criteria: 25-60 years old with a BMI of ≥ 30≤55 kg/m2. Subjects (16 individuals) will be in the study for 12 days and have a dobhoff tube placed at the start of the study. Subjects will visit MCRU daily for 12 days where meals will be provided, and where anthropometric measures, blood work during an oral mixed meal tolerance test (study start and study end), and surveys will be completed. The dobhoff tube will remain in place until the end of the study.