A Study of Chewing Gum, Snacking and Appetite (GUM)
Investigators are interested in learning how appetite responds after chewing gum.
In this research study subjects will be asked to eat a lunch meal provided at our Center. After eating the lunch meal, subjects will answer questions describing their feelings of hunger, thirst and desire to eat every 30 minutes for 3 hours.
Blood will be drawn throughout the study period to determine how chewing gum impacts certain hormones released from your intestine after eating and therefore how they influence your appetite. Blood draws will be done every 30 minutes for 3 hours. At only one of the two study visits, subjects will chew gum during specific times. One study visit will not include chewing gum.
After three hours, there will be a snack to eat as much as desired followed by one more set of questions and blood draw.
All study visits will take approximately 4 ½ hours.
|Study Design:||Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Basic Science
|Official Title:||Understanding the Role of Chewing Gum in Satiation, Satiety and Hunger Management|
- To characterize the subjective and metabolic satiety response pattern to chewing gum vs. no chewing gum on subjective satiety and subsequent second meal intake in adult women. [ Time Frame: 4 hour post prandial study ] [ Designated as safety issue: No ]
Chewing gum will be provided throughout the 4 hour post-prandial study at defined intervals at one of the two study visits. Feelings of hunger, fullness and desire to eat will be measured by the subject every 30 minutes post-lunch for 3 hours. Blood draws will also be collected every 30 minutes post-lunch for 3 hours.
At 3 hours, a snack tray will be provided and subject will be instructed to consume as desired. One additional sent of questions and blood draw will be completed at 4 hours post-lunch.
- To investigate the relationship of metabolic responses to gum-induced/enhanced satiety by evaluating changes in free-living food intake in adult women [ Time Frame: 2 days ] [ Designated as safety issue: No ]
Blood draws will also be collected every 30 minutes post-lunch for 3 hours. One additional blood draw will be completed at 4 hours post-lunch.
Subjects will be asked to maintain a self-selected diet throughout the study period. Leading up to the study visits, subjects will measure and record all food intake using food intake scales provided. Subjects will also be asked to measure and record all food intake for the remainder of the study visit day.
|Study Start Date:||December 2010|
|Estimated Study Completion Date:||May 2014|
|Estimated Primary Completion Date:||May 2014 (Final data collection date for primary outcome measure)|
Active Comparator: Chewing gum
Subject will chew gum at defined intervals
Dietary Supplement: Chewing Gum
chewing gum will be provided
Other Name: subject will chew gum
Placebo Comparator: No Gum
No chewing gum will be provided to subject
Dietary Supplement: No Gum
no chewing gum will be provided
Other Name: subject will not chew gum
The study is a randomized, 2-arm, placebo-controlled, within-subjects crossover study to evaluate the satiety and metabolic response patterns of gum/no gum in relatively healthy weight and obese women.
The study will require one initial screening visit (1 hour) and 2 study visits. We are looking for healthy, non-smoking women older than 18 years of age with no significant medical history.
The initial screening visit will determine subject eligibility through height, weight and waist circumference measurements, vital signs, blood glucose test (finger prick) and completion of a series of surveys related to eating, health, exercise and mood.
If willing and eligible to participate, subjects will have 2 study visits. The lunch will be provided 4 hours after a intra-subject standardized breakfast (the same breakfast for each subject before each study visit). Upon arrival at each visit, subjects will have anthropometric measurements, vital signs upon blood glucose finger prick as well as assessment for compliance with breakfast protocol, subsequent fasting and adequate water intake.
Upon completion of pre-study procedures, a registered nurse will place a catheter (flexible tubing) in the subjects' arm during each study visit. A catheter is used so subjects are not stuck with a needle for every blood sample. Instead, the catheter is inserted using a needle, the needle is removed and the flexible plastic tubing remains the arm for the duration of the study day serving as a port for collecting blood samples at the specific time points
The initial blood draw will be collected (pre-lunch) then the lunch meal served. Subjects will have 20 minutes to finish the entire lunch meal. Thereafter, subjects will describe feelings of hunger, thirst and desire to eat every 30 minutes for 3 hours followed by blood draws.
At one of the 2 study visits, subjects will be provided chewing gum at which they will chew gum for 15 minutes leading up to the question set and blood draw.
A tray of snacks will be provided at 3 hours post-lunch and subjects may consume the snacks as desired. Lastly, a final set of questions will be answered followed by a blood draw at 4 hours post-lunch.
During the course of the study, subjects will be instructed to maintain their usual level of activity and a self-selected diet. Three day food records will be maintained throughout the course of the study.
Each study visit will last approximately 4 1/2 hours and subjects will be required to remain at the Clinical Nutrition Research Center on the IIT Campus for the duration of the visit.
|United States, Illinois|
|Clinical Nutrition Research Center|
|Chicago, Illinois, United States, 60616|
|Study Director:||Britt Burton-Freeman, MS, PhD||National Center Food Safety and Technology|