About this trial
The investigators seek to better understand how a single high-fat meal impacts gut, immune, and vascular outcomes in individuals with "metabolically healthy obesity" (obesity and largely normal cardiometabolic profile) and "metabolically healthy normal-weight individuals." Second, the investigators seek to understand how a prebiotic fiber (inulin) impacts gut, immune, and vascular outcomes in individuals with "metabolically healthy obesity."
Eligibility criteria
This trial accepts healthy volunteersQualifiers
18-55 years old.
BMI is 18.5-24.9 kg/m2 or >30kg/m2 (part 1). BMI > 30 kg/m2 (part 2)
Not pregnant or expecting to become pregnant (females only).
Not postmenopausal (females only).
Disqualifiers
Not 18-55 years old.
BMI is not 18.5-24.9 kg/m2 or >30kg/m2 (part 1). BMI is not > 30 kg/m2 (part 2)
Pregnant or expecting to become pregnant (females only).
Postmenopausal (females only).
Trial design
Parallel
Treatments tested in this trial
Inulin Supplementation
Dietary supplementHalf of participants in part 2 will recieve supplemental inulin or placebo (maltodextrin).
Maltodextrin (Placebo)
Dietary supplementHalf of participants in part 2 will recieve supplemental inulin or placebo (maltodextrin).
High-fat meal
Other interventionAll participants in part 1 (both metabolically healthy normal weight and metabolically healthy obesity) will consume a high-fat meal designed to invoke changes in gut, immune, and vascular parameters.
Treatment groups
Trial outcomes
Primary outcomes
Serum lipopolysaccharide binding protein
Part 1: The investigators will measure lipopolysaccharide binding protein at baseline and , 1-, 2-, 3-, 4-, 5-, and 6-hours after the meal. Part 2: The investigators will measure lipopolysaccharide binding protein at baseline and 2-, 4-, and 6-weeks post intervention.
Serum interleukin-6
Part 1: The investigators will measure interleukin-6 at baseline and , 1-, 2-, 3-, 4-, 5-, and 6-hours after the meal. Part 2: The investigators will measure interleukin-6 at baseline and 2-, 4-, and 6-weeks post intervention.
Flow-mediated dilation
Part 1: The investigators will measure flow-mediated dilation at baseline and 2-, 4-, 6-hours after the meal. Part 2: The investigators will measure flow-mediated dilation at baseline and 2-, 4-, and 6-weeks post intervention.
Serum C reactive protein
Part 2: The investigators will measure C reactive protein at baseline and 2-, 4-, and 6-weeks post intervention.
Secondary outcomes
Augmentation Index
Part 1: The investigators will measure augmentation index at baseline and 2-, 4-, 6-hours after the meal. Part 2: The investigators will measure augmentation index at baseline and 2-, 4-, and 6-weeks post intervention.
Pulse-wave velocity
Part 1: The investigators will measure pulse-wave velocity at baseline and 2-, 4-, 6-hours after the meal. Part 2: The investigators will measure pulse wave velocity at baseline and 2-, 4-, and 6-weeks post intervention.
Serum soluble CD14
Part 1: The investigators will measure serum soluble CD14 at baseline and , 1-, 2-, 3-, 4-, 5-, and 6-hours after the meal. Part 2: The investigators will measure serum soluble sCD14 at baseline and 2-, 4-, and 6-weeks post intervention.
Serum IL-1 beta
Part 1: The investigators will measure serum IL-1 beta at baseline and , 1-, 2-, 3-, 4-, 5-, and 6-hours after the meal. Part 2: The investigators will measure serum IL-1beta at baseline and 2-, 4-, and 6-weeks post intervention.
Other outcomes
Body fat percent
Part 1: The investigators will measure body fat percent using Dual-Energy X-ray Absorptiometry. Part 2: The investigators will measure body fat percent using Dual-Energy X-ray Absorptiometry at baseline and 6-weeks post intervention.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.