Increasing the volume of a food by incorporating air affects satiety in men.
Increasing the volume of a food by incorporating air affects satiety in men.
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DOI：
10.1093/ajcn/72.2.361
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发表时间：
2000-08
期刊：
影响因子：
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通讯作者：
B. Rolls;Elizabeth A Bell;Bethany A Waugh
中科院分区：
文献类型：
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作者：
B. Rolls;Elizabeth A Bell;Bethany A Waugh
背景先前的研究表明，通过加水来增加食物的体积会导致能量摄入的减少。然而，水的添加不仅影响食品的体积，还影响食品的能量密度(kJ/g)。还没有研究检验与能量密度无关的体积对摄入量的影响。目的探讨不依赖能量密度的食物体积对饱腹感的影响。在受试者内部设计中，28名瘦削的男性在实验室里吃早餐、午餐和晚餐，每天1天，持续4周。在第3天，参与者在午餐前30分钟接受预加载，而在第1天不提供预加载。预负荷由等能(2088kJ)酸奶奶昔组成，由于加入了不同数量的空气，奶昔的体积(300、450和600毫升)不同。预装货物含有相同的成分，重量相同。结果奶昔用量对午餐能量摄入量有显著影响(P<；0.04)，600毫升预负荷(2966+/-247kJ)比300毫升预负荷(3368+/-197kJ)低12%。受试者还报告说，在饮用450毫升和600毫升的预加载后，饥饿感的减少和饱腹感的增加都比300毫升的预加载后更大。结论通过加入空气改变预负荷的容量会影响能量摄入。因此，预压的体积与其能量密度无关，可以影响满足感。
BACKGROUND Previous research indicated that increasing the volume of food by adding water can lead to reductions in energy intake. However, the addition of water affects not only the volume but also the energy density (kJ/g) of foods. No studies have examined the effect of volume independent of energy density on intake. OBJECTIVE We examined the effect of food volume independent of energy density on satiety. DESIGN In a within-subjects design, 28 lean men consumed breakfast, lunch, and dinner in the laboratory 1 d/wk for 4 wk. On 3 d, participants received a preload 30 min before lunch and on 1 d no preload was served. Preloads consisted of isoenergetic (2088 kJ), yogurt-based milk shakes that varied in volume (300, 450, and 600 mL) as a result of the incorporation of different amounts of air. Preloads contained identical ingredients and weighed the same. RESULTS The volume of the milk shake significantly affected energy intake at lunch (P < 0.04) such that intake was 12% lower after the 600-mL preload (2966 +/- 247 kJ) than after the 300-mL preload (3368 +/- 197 kJ). Subjects also reported greater reductions in hunger and greater increases in fullness after consumption of both the 450- and 600-mL preloads than after the 300-mL preload. CONCLUSIONS Changing the volume of a preload by incorporating air affected energy intake. Thus, the volume of a preload independent of its energy density can influence satiety.