Eating BehaviorNCT00200213
Liking of Snack Foods - Sub-Study 1
A study testing portion or unportioned food in people with Eating Behavior and Obesity, run by The Miriam Hospital at 1 site in United States.
Trial summary
Specific Aims: Environmental factors contributing to overconsumption, such as larger food portion sizes, may be contributing to the obesity epidemic. The objective of the proposed study is to examine the independent and combined effects of portion size and quantity of food on intake in normal weight males and females. Read more about this study
- Who is it for?
- Ages 18 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Eating Behavior, Obesity, Satiation
- What is being tested?
- portion or unportioned food
- Type of treatment
- Lifestyle or therapy programme
- How many people
- 32 participants
- Where
- 1 siteUnited States
- Study dates
- Feb 2004to Mar 2005
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 50 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy, non-smoking, normal- and over-weight (body mass index [BMI] < 30) unrestrained, males and females, who regularly eat junk foods (consume junk foods > 3 times per week).
Who cannot join
- Participants will be excluded if they are not between the ages of 18 and 50, smoke, following a weight loss diet, an athlete in training, pregnant or breastfeeding, or have a health condition or use medication that affects eating or requires specialized diet therapy (e.g., diabetes). Additionally, if participants rarely consume junk foods (< 2 times per week) or have allergies or unfavorable preferences towards foods used in the investigation they will be excluded from the study. Participants will also be excluded if they are a restrained eater (scoring > 12 on the Three Factor Eating Questionnaire [TFEQ] [Stunkard \& Messick, 1985]) or report being a binge eater.-
Trial locations and contacts
1 site in 1 country.
United States1 site
The Weight Control and Diabetes Research Center
Providence, Rhode Island, 02903
About this study
Official title: The Effect of Portion Size and Quantity of Food Provided on Intake
Specific Aims: Environmental factors contributing to overconsumption, such as larger food portion sizes, may be contributing to the obesity epidemic. The objective of the proposed study is to examine the independent and combined effects of portion size and quantity of food on intake in normal weight males and females. Participants will be randomly assigned to one of four conditions varying in the portion size and quantity of junk food provided: small quantity of food packaged in small portions (SSP), small quantity of food packaged in large portions (SLP), large quantity of food packaged in small portions (LSP), and large quantity of food packaged in large portions (LLP). A box containing four different junk foods, packaged according to one of the four conditions, will be given to participants to take home for three days. The total amount of food consumed from the box over the three days will be measured. It is anticipated that portion size and quantity of food, both independently and combined, will influence intake, such that larger portion sizes and quantity of food provided to participants will produce greater intake.Subject Population: We propose to recruit 60 healthy men and women, aged 18-50 years, with a body mass index (BMI) of less than or equal to 28. Participants will be non-smokers, unrestrained eaters, and have no known food allergies to the foods used in the investigation.Methods/Design: Participants will be randomly assigned to one of four conditions, varying in portion size (small versus large) and quantity of food provided (small versus large). A box containing four junk foods, packaged according to one of the conditions, will be provided to participants. They will be encouraged to eat as much or as little of the food as they want, but to at least taste each of the four foods over the three-day period. During this time, they will be instructed to not eat any other junk foods. At the end of the three-day period, participants will return the box with any remaining uneaten junk food.Data Analyses: The dependent variables, the amount of grams and kcals consumed from the provided junk foods, will be examined between the four different conditions.Significance: If portion size and quantity are related to intake, subsequent studies will develop clinical interventions related to reducing portion size and/or quantity of food available in the household.
- Conditions
- Eating Behavior, Obesity, Satiation
- Being tested
- portion or unportioned food
- Medical subject headings
- Feeding Behavior, Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
portion or unportioned foodBehavioural
What is being measured
The primary outcome is the main question the study is designed to answer.
Amount of food eaten
Secondary outcomes (1)
Liking of foods in study
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Sep 2005 (estimated)
- Study startFeb 2004
- Study completionMar 2005
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Eating BehaviorStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Enrolment
- 32 participants
Sponsor and investigators
- Lead sponsor
- The Miriam Hospital
- Sponsor type
- University, hospital or other
- Investigators
- Hollie A Raynor, PhD, Principal investigator, The Miriam Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00200213
- Sponsor's protocol ID
- 2107-02
- Status last verified
- Sep 2005
- First submitted
- 12 Sep 2005
- Last updated
- 20 Sep 2005
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Sep 2005. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Portion Size and Quantity of Food Provided on Intake
- ClinicalTrials.gov ID
- NCT00200213
- Acronym / sponsor ID
- 2107-02
- Conditions
- Eating Behavior, Obesity, Satiation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 32 participants
- Lead sponsor
- The Miriam HospitalUniversity, hospital or other
- Study start
- Feb 2004
- Study completion
- Mar 2005
- First posted
- 20 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Specific Aims: Environmental factors contributing to overconsumption, such as larger food portion sizes, may be contributing to the obesity epidemic. The objective of the proposed study is to examine the independent and combined effects of portion size and quantity of food on intake in normal weight males and females. Participants will be randomly assigned to one of four conditions varying in the portion size and quantity of junk food provided: small quantity of food packaged in small portions (SSP), small quantity of food packaged in large portions (SLP), large quantity of food packaged in small portions (LSP), and large quantity of food packaged in large portions (LLP). A box containing four different junk foods, packaged according to one of the four conditions, will be given to participants to take home for three days. The total amount of food consumed from the box over the three days will be measured. It is anticipated that portion size and quantity of food, both independently and combined, will influence intake, such that larger portion sizes and quantity of food provided to participants will produce greater intake.Subject Population: We propose to recruit 60 healthy men and women, aged 18-50 years, with a body mass index (BMI) of less than or equal to 28. Participants will be non-smokers, unrestrained eaters, and have no known food allergies to the foods used in the investigation.Methods/Design: Participants will be randomly assigned to one of four conditions, varying in portion size (small versus large) and quantity of food provided (small versus large). A box containing four junk foods, packaged according to one of the conditions, will be provided to participants. They will be encouraged to eat as much or as little of the food as they want, but to at least taste each of the four foods over the three-day period. During this time, they will be instructed to not eat any other junk foods. At the end of the three-day period, participants will return the box with any remaining uneaten junk food.Data Analyses: The dependent variables, the amount of grams and kcals consumed from the provided junk foods, will be examined between the four different conditions.Significance: If portion size and quantity are related to intake, subsequent studies will develop clinical interventions related to reducing portion size and/or quantity of food available in the household.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
Who may qualify
- Ages
- 18 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Healthy, non-smoking, normal- and over-weight (body mass index [BMI] < 30) unrestrained, males and females, who regularly eat junk foods (consume junk foods > 3 times per week).
Key exclusion criteria (1 listed)
- Participants will be excluded if they are not between the ages of 18 and 50, smoke, following a weight loss diet, an athlete in training, pregnant or breastfeeding, or have a health condition or use medication that affects eating or requires specialized diet therapy (e.g., diabetes). Additionally, if participants rarely consume junk foods (< 2 times per week) or have allergies or unfavorable preferences towards foods used in the investigation they will be excluded from the study. Participants will also be excluded if they are a restrained eater (scoring > 12 on the Three Factor Eating Questionnaire [TFEQ] [Stunkard \& Messick, 1985]) or report being a binge eater.-
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| portion or unportioned food | Behavioural | – |
Primary outcome
Amount of food eaten
1 secondary outcome
Liking of foods in study
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Sep 2005.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Hollie A Raynor, PhD principal investigator
The Miriam Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing portion or unportioned food in people with Eating Behavior and Obesity, run by The Miriam Hospital at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 20 Sep 2005. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Amount of food eaten. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Sep 2005.