About this trial
This study will test the hypothesis that within a defined range of fructose intake, the ability to convert fructose to glucose (via gluconeogenesis) in the small intestine plays a protective role for the liver, shielding it from the deleterious effects of fructose. We will investigate whether this protective effect of the intestine is impaired in individuals with obesity.
Eligibility criteria
Qualifiers
BMI 30 to 38 kg/m2 (obese group) or BMI 19 to 25 kg/m2 (lean group)
Disqualifiers
Pregnancy or lactation within the past six months;
Type 1 or 2 diabetes mellitus (including fasting glucose ≥126 mg/dL, HgbA1c ≥6.5%);
History of liver disease or AST and ALT 2x above the upper limit of normal;
Fasting triglyceride > 300 mg/dl; total cholesterol levels above the 95th percentile for age and sex;
Trial design
Treatments tested in this trial
- High fructose meal
- Low fructose meal
- 13C labeled fructose, oral
- 13C labeled fructose, intravenous
Treatment groups
Sponsors and collaborators
Touro University, California
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborator