Food Reinforcement, Weight Status, and Energy Density

The investigators previous studies have shown that obese and non-obese individuals respond differently to daily intake of snack food. The purpose of this study was to determine whether these differences are specific to high energy density snack foods. The investigators hypothesized that obese individuals would show an increase in motivation to obtain high energy density snack foods after two weeks of daily consumption, but that non-obese women and obese women consuming low energy density foods would have reduced motivation to consume snack foods after two weeks of daily consumption.

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Key information

Conditions

Reinforcing Value of Food Body Weight Nutrition Disorders Nutritional and Metabolic Diseases Obesity Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–50 year

Sex eligibility

Female

Study type

Observational

Primary location

University at Buffalo

Buffalo, New York, 14214, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

18 - 50 years old, female, like study foods.

Exclusion criteria

current smoker, currently on a diet, medical conditions or medication affecting appetite (ex. methylphenidate).

Treatment and study plan

Daily snack food intake

Behavioral

participants consumed 60 gram portions of either low energy density or high energy density snack foods every day for two weeks.

Primary outcomes

Number of operant responses

Time frame: about one month

Participants were asked to click a mouse button to gain access to food. A point was earned after a certain number of button presses and after 5 points were earned, the participant received 100 kcal portion of food.

Secondary outcomes

Food liking

Time frame: about one month

participants rated how much they liked the food on a Likert-type scale.

Sponsors and collaborators

Lead sponsor

State University of New York at Buffalo

Other

Registry information

Official study title

Effects of Daily Snack Food Intake on Food Reinforcement Depend on Weight Status and Energy Density

Important dates

Study start: 2008
Primary completion: 2009
Study completion: 2009
First posted: Jun 10, 2019
Registry last updated: Jun 10, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed