The purpose of this research study is to test how different aspects of food including food processing affect eating behaviors.
The purpose of this project is to begin to address the current gap in research on ultra-processed foods (UPFs) and satiety with an acute feeding study that compares nutrient-dense meals containing mostly UPFs or "minimally processed" foods (MPFs) (mostly meaning ≥80% kcal) with similar food types and texture and macronutrient content to assess potential impacts on satiety, eating rate, food palatability, acceptance, and oral processing behaviors.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Enrollment
40
Participants will be provided with the UPF breakfast during the first study visit and the MPF breakfast during the second study visit
Participants will be provided with the MPF breakfast during the first study visit and the UPF breakfast during the second study visit
USDA ARS Grand Forks Human Nutrition Research Center
Grand Forks, North Dakota, United States
RECRUITINGDifference in satiety as determined by visual analogue scales (VAS)
Participants will complete visual analogue scales (VAS) on satiety measures during each study visit. VAS are represented by 100mm lines anchored at each end by descriptive extremes. For satiety, these extremes are statements about desire to eat (very weak; very strong), hunger (not hungry; as hungry as I've ever felt), fullness (not full; totally full), satisfied (completely empty; cannot eat another bite), prospective consumption (not at all; a large amount). Participants indicate via marks on the VAS line the extent to which they experience each sensation at a given timepoint. Measurements are tracked across time and plotted on a graph from baseline to the time preceding the next meal and the area under the curve above the baseline measurement is calculated.
Time frame: Day 1, Day 15
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