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Satiety: have we neglected dietary non-nutrients?

机译:饱腹感:我们是否忽略了饮食中的非营养成分?

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Satiety, which is the inhibition of eating following the end of a meal, is influenced by a number of food characteristics, including compositional and structural factors. An increased understanding of these factors and the mechanisms whereby they exert their effects on satiety may offer a food-based approach to weight management. Water and gas, which are often neglected in nutrition, are major components of many foods and contribute to volume, and to sensory and other characteristics. A review of previous short-term studies that evaluated the effects of water or gas in foods on satiety showed that while satiety was generally increased, effects on subsequent intakes were not always apparent. These studies were diverse in terms of design, timings and food matrices, which precludes definitive conclusions. However, the results indicate that solids may be more effective at increasing satiety than liquids, but gas may be as effective as water. Although increased gastric distension may be the main mechanism underlying these effects, pre-ingestive and ingestive impacts on cognitive, anticipatory and sensory responses also appear to be involved. Furthermore, there is limited evidence that water on its own may be effective at increasing satiety and decreasing intakes when drunk before, but not with, a meal. Longer-term extrapolation suggests that increasing food volumes with water or gas may offer weight-management strategies. However, from a practical viewpoint, the effects of water and gas on satiety may be best exploited by using these non-nutrients to manipulate perceived portion sizes, without increasing energy contents.
机译:饱腹感,即用餐后的进食障碍,受许多食物特征(包括组成和结构因素)的影响。对这些因素及其对饱足感产生影响的机制的加深了解可能会提供一种以食物为基础的体重管理方法。通常在营养中被忽略的水和气体是许多食物的主要成分,它们有助于食物的体积,感官和其他特征。对先前评估食物中水或气体对饱腹感影响的短期研究的回顾表明,虽然饱腹感通常会增加,但对随后摄入量的影响并不总是很明显。这些研究在设计,时间和食物矩阵方面是多种多样的,因此无法得出明确的结论。但是,结果表明,固体在增加饱腹感方面可能比液体更有效,但气体可能与水一样有效。尽管增加的胃胀可能是造成这些影响的主要机制,但似乎也涉及到食欲减退和食入对认知,预期和感觉反应的影响。此外,有限的证据表明,在饭前而不是饭后喝水时,水本身可以有效增加饱腹感并减少摄入量。长期推断表明,用水或汽油增加食物量可能提供体重管理策略。但是,从实际的角度来看,通过使用这些非营养物来调节感知的份量,而不增加能量含量,可以最好地利用水和气体对饱腹感的影响。

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