■尽管干预试验的证据有限,作为健康饮食模式的一部分,人们仍然建议用植物替代品代替富含动物来源蛋白质的食物。
■这项研究的目的是检查是否含有新鲜,瘦牛肉引起更大的饱腹感,随意减少食物摄入量,与含有植物替代品的饮食相比,超重女性更容易接受。
■17名超重女性(平均值±SEM,年龄:33±1岁;BMI:27.8±0.1kg/m2)完成急性,严格控制,交叉设计研究。向参与者提供了桉树,等氮饮食(每日摄入量的15%作为蛋白质),含有2份/d的新鲜瘦牛肉(BEEF)或植物当量(PLANT),持续7d/模式。在每种模式的第六天,参与者完成了10小时的控制喂养,临床试验日,其中包括反复的食欲和饱腹感问卷调查和血液采样,以评估全天的餐前和餐后血浆肽YY(PYY)和GLP-1。在第7天,参与者完成了自由生活测试日,他们食用了各自的蛋白质食物,并获得了额外的富含碳水化合物和脂肪的食物,任意,每次吃饭的时候。评估能量和大量营养素组成。模式之间发生了2到3周的冲洗期。
■在模式之间没有检测到每日饱腹感的差异。在随意测试日,24小时食物摄入量在不同模式之间没有差异(牛肉:2714±219与植物:2859±147kcals/d),与植物相比,牛肉导致碳水化合物消耗减少(338±34,370±22g/d,P<0.05),特别是糖(169±73克,186±57克,P=0.05)。此外,牛肉更受欢迎(即,更高的味道,纹理,和可接受性)与植物(所有,P<0.05)。
■尽管不同模式之间的饱腹感相似,食用动物来源的富含蛋白质的食物,如新鲜和瘦牛肉,更受欢迎,并导致在一次性随意测试日期间超重的中年女性自愿减少总碳水化合物和糖的摄入量。这项研究在clinicaltrials.gov注册为NCT02614729。
UNASSIGNED: Despite limited evidence from intervention trials, replacing animal-source protein-rich foods with plant alternatives continues to be recommended as part of a healthy dietary pattern.
UNASSIGNED: The objective of this study was to examine whether a diet containing fresh, lean beef elicits greater
satiety, reduces ad libitum food intake, and is more acceptable compared with a diet containing plant alternatives in women with overweight.
UNASSIGNED: Seventeen women with overweight (mean ± SEM, age: 33 ± 1 y; BMI: 27.8 ± 0.1 kg/m2) completed an acute, tightly controlled, crossover design study. Participants were provided with eucaloric, isonitrogenous diets (15% of daily intake as protein) containing either 2 servings/d of fresh lean beef (BEEF) or plant equivalents (PLANT) for 7 d/pattern. During day 6 of each pattern, the participants completed a 10-h controlled-feeding, clinical testing day, which included repeated appetite and
satiety questionnaires and blood sampling to assess pre- and postprandial plasma peptide YY (PYY) and GLP-1 across the day. On day 7, the participants completed a free-living testing day in which they consumed their respective protein foods and were provided with additional carbohydrate- and fat-rich foods to consume, ad libitum, during each eating occasion. Energy and macronutrient composition were assessed. A 2- to 3-wk washout period occurred between patterns.
UNASSIGNED: No differences in daily
satiety were detected between patterns. During the ad libitum testing day, 24-h food intake was not different between patterns (BEEF: 2714 ± 219 compared with PLANT: 2859 ± 147 kcals/d), BEEF led to fewer carbohydrates consumed compared with PLANT (338 ± 34 compared with 370 ± 22 g/d, P < 0.05), especially as sugar (169 ± 73 g compared with 186 ± 57 g, P = 0.05). Furthermore, BEEF was more well liked (i.e., higher flavor, texture, and acceptability) compared with PLANT (all, P < 0.05).
UNASSIGNED: Although
satiety was similar between patterns, the consumption of animal-source protein-rich foods, such as fresh and lean beef, was more well liked and resulted in voluntary reductions in total carbohydrate and sugar intake in middle-aged women with overweight during a single ad libitum testing day.This study was registered at clinicaltrials.gov as NCT02614729.