Does Food Labeling Influence Long-term Food Intake and Eating-related Variables in Women? (MENU)
31 agosto 2015 aggiornato da: Véronique Provencher, Laval University
Weight management is a critical issue in developed countries where the prevalence of obesity is always increasing.
While the mismatch of energy intake and energy expenditure is recognized as a leading cause of obesity, knowledge related to the determinants of healthy eating patterns are still an important issue to further address.
Various nutrition-education campaigns have been implemented as a way to increase knowledge about healthy foods and facilitate the adoption of better eating behaviors.
There is currently social and politic pressure on health authorities to increase availability of nutrition information as a way to tackle the obesity epidemic.
Does nutrition information on food labels really contribute to improving dietary intake among the population and to helping them to better manage their body weight?
Some evidence suggests that describing foods as healthy might have unintended enhancement effects on the acute amount of food and calories consumed.
A better understanding of how and why nutrient and calorie labels influence acute and chronic intake is thus needed.
This study investigate how providing nutritional information on food labels influences intake and eating-related variables over a 10-day period among women characterized by varying levels of adiposity.
As it has never been investigated before, the present research will provide important knowledge on the long-term impacts of different food labeling strategies on the regulation of food intake.
It will also help to determine whether weight status could influence the effects of perceptions about foods on intake, so that the investigators can identify individuals who mostly tend to overeat in specific situations.
Consumer advocacy organizations are urging government to adopt policies regarding food labeling.
Such research is thus of great relevance for the promotion of healthy body weight at the population level, as it will clearly contribute to assess how food labels should be used by health governing bodies in the context of the obesity epidemic.
Panoramica dello studio
Stato
Stato
Completato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
Much effort has been invested to educate Canadians about the importance of healthy eating and active living. Various food labeling strategies are currently used (e.g. nutrient-content claims approved by Health Canada), or strongly suggested (e.g. calorie information on restaurant menus), as tools to increase knowledge about healthy food choices and to help consumers make more so-called healthier choices. Does nutrition information on food labels really contribute to improve dietary intakes among the population? Some evidence does suggest that food labeling could influence consumer's choices and purchases. But, consumers remain confused about what healthy eating should be, and about how many calories they should be eating per day. Data suggest that only 50% of them truly understand and use food labels. Results regarding the impact of food labeling on intake are less convincing. We have recently shown that perceiving a snack food as healthy increased intake of that food by 35% in female students. Health halos promoted by nutrition information may lead consumers to draw misleading inferences from food labels. Considering current public pressure on health authorities to increased availability of nutrition information as a way to attack the obesity epidemic, long-term impact of food labeling strategies on food intake regulation represents a critical key issue that have not been yet investigated.
The general objective of the present research proposal is to investigate how providing nutritional information on food labels influences intake and eating-related variables over a 10-day period among women. We will more specifically:
- Compare the impact of 1) nutrient quality and 2) calorie content food labels vs. "no label" condition on mean ad libitum intake and appetite sensations before/after meals over a 10-day period in women.
- Examine how body weight (normal versus obesity) influences the impact of the nutrient quality and calorie content food labels on mean ad libitum intake and appetite sensations over a 10-day period in women.
- Verify whether types of food labels influence attitudes towards meals offered (i.e. perceived healthiness, appropriateness, palatability) over a 10-day period in women.
Tipo di studio
Tipo di studio
Interventistico
Iscrizione (Effettivo)
Iscrizione
160
Fase
Fase
- Non applicabile
Contatti e Sedi
Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.
Luoghi di studio
-
-
Quebec
-
Québec city, Quebec, Canada, G1V 0A6
- Institute of Nutraceuticals and Functionnal Foods (INAF)
-
-
Criteri di partecipazione
I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Da 25 anni a 65 anni (Adulto, Adulto più anziano)
Accetta volontari sani
Sì
Sessi ammissibili allo studio
Femmina
Descrizione
Inclusion Criteria:
- stable weight (± 2.5 kg) for at least 3 months prior to the study.
- BMI between 18.5 and 25 kg/m2 for the non-obese group and BMI between 30 and 40 kg/m2 for the obese group.
Exclusion Criteria:
- pregnant or lactating.
- aversion to the foods in the study.
- taking medication (e.g., corticosteroids,tricyclic antidepressants, atypical antipsychotics) and present chronic health problems (e.g.,food allergies, eating disorders, diabetes, hyperthyroidism) that could affect appetite measurements and food intake.
Piano di studio
Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.
Come è strutturato lo studio?
Dettagli di progettazione
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione fattoriale
- Mascheramento: Separare
Numero di armi
2
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
|
Altro: Non-obese
Non-obese women (BMI between 18.5 and 25 kg/m2)
|
A label indicating that the lunch they will eat is low in saturated fat and free from trans fat will be posted on the containers.
A label indicating the amount of calories for a fixed serving plus information about daily caloric requirement ("The recommended daily caloric intake for an average adult is 2000 calories") will be posted on the containers.
Lunches will be free from labels, so that no nutritional information will be provided to the participants(control group).
|
|
Altro: Obese
Obese women (BMI between 30 and 40 kg/m2)
|
A label indicating that the lunch they will eat is low in saturated fat and free from trans fat will be posted on the containers.
A label indicating the amount of calories for a fixed serving plus information about daily caloric requirement ("The recommended daily caloric intake for an average adult is 2000 calories") will be posted on the containers.
Lunches will be free from labels, so that no nutritional information will be provided to the participants(control group).
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Mean ad libitum intake
Lasso di tempo: Up to 2 years after the beginning of the study
|
The mean amount per day of food eaten during the 10-day period (grams and calories).
|
Up to 2 years after the beginning of the study
|
Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Appetite sensations
Lasso di tempo: Up to 2 years after the beginning of the study
|
Visual-analogue ratings of hunger and fullness(measured in millimeters) before and after each meal.
|
Up to 2 years after the beginning of the study
|
Collaboratori e investigatori
Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.
Sponsor
Sponsor
Collaboratori
Collaboratori
Studiare le date dei record
Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.
Studia le date principali
Inizio studio
Inizio studio
1 agosto 2011
Completamento primario (Effettivo)
Completamento primario
1 maggio 2013
Completamento dello studio (Effettivo)
Completamento dello studio
1 aprile 2015
Date di iscrizione allo studio
Primo inviato
Primo inviato
16 maggio 2012
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
22 maggio 2012
Primo Inserito (Stima)
Primo Inserito
24 maggio 2012
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento pubblicato
1 settembre 2015
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
31 agosto 2015
Ultimo verificato
Ultimo verificato
1 agosto 2015
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- INAF 2011-088
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .