Does Food Labeling Influence Long-term Food Intake and Eating-related Variables in Women? (MENU)
研究概览
详细说明
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.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Quebec
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Québec city、Quebec、加拿大、G1V 0A6
- Institute of Nutraceuticals and Functionnal Foods (INAF)
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
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.
学习计划
研究是如何设计的?
设计细节
- 分配:随机化
- 介入模型:阶乘赋值
- 屏蔽:单身的
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
其他:Non-obese
Non-obese women (BMI between 18.5 and 25 kg/m2)
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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).
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其他:Obese
Obese women (BMI between 30 and 40 kg/m2)
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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).
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Mean ad libitum intake
大体时间: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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次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Appetite sensations
大体时间: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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合作者和调查者
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
关键字
其他研究编号
- INAF 2011-088
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