Does Food Labeling Influence Long-term Food Intake and Eating-related Variables in Women? (MENU)
調査の概要
詳細な説明
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.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Quebec
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Québec city、Quebec、カナダ、G1V 0A6
- Institute of Nutraceuticals and Functionnal Foods (INAF)
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
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.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 割り当て:ランダム化
- 介入モデル:階乗代入
- マスキング:独身
武器と介入
参加者グループ / アーム |
介入・治療 |
---|---|
他の: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).
|
他の: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).
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
Mean ad libitum intake
時間枠:Up to 2 years after the beginning of the study
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The mean amount per day of food eaten during the 10-day period (grams and calories).
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Up to 2 years after the beginning of the study
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
Appetite sensations
時間枠: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.
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Up to 2 years after the beginning of the study
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協力者と研究者
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
その他の研究ID番号
- INAF 2011-088
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。