Institute of Psychological Sciences, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9JT, UK.
Nat Rev Endocrinol. 2010 Jan;6(1):53-6. doi: 10.1038/nrendo.2009.224.
Functional food products promote claims such as 'freedom from hunger' and 'feel fuller for longer'. A legislative framework has been established by the European Food Safety Authority to evaluate the validity of such claims: a claim must be substantiated by scientific evidence and should be clearly understood by consumers. Since consumed foods influence appetite by means of a system of physiological satiety signals, functional foods could in principle act by increasing the potency and/or duration of these signals. Importantly, what constitutes a useful action: a reduction in hunger, an increase in fullness, a change in food intake at a meal, an adjustment in daily energy balance or a reduction in body weight? Any claim should not go beyond the scientific evidence of an effect, and methods exist to scientifically evaluate claims. The wording of a claim is, therefore, critical. The difference between a proof of concept and a guarantee of success is an important point that needs to be conveyed to the consumer.
功能性食品产品宣传“免受饥饿”和“更长时间保持饱腹感”等功效。欧洲食品安全局已建立立法框架，用以评估此类功效声称的有效性：声称必须有科学证据支持，并且应让消费者清楚理解。由于所摄入的食物通过生理饱腹感信号系统影响食欲，功能性食品原则上可以通过增强这些信号的效力和/或持续时间来发挥作用。重要的是，什么构成有效作用：减少饥饿感、增加饱腹感、改变一餐中的食物摄入量、调整日常能量平衡或减轻体重？任何声称都不应超出对效果的科学证据，并且存在科学评估声称的方法。因此，声称的措辞至关重要。从概念验证到保证成功，这两者之间的差异是需要向消费者传达的一个重要要点。
