Department of Food Science & Nutrition, College of Life Sciences, Kuwait University, P.O. Box 5969, Safat, 13060, Kuwait.
Appetite. 2018 Dec 1;131:1-6. doi: 10.1016/j.appet.2018.08.028. Epub 2018 Aug 23.
High fiber diets promote satiety and sustain normal blood glucose by delaying digestion and slowing glucose absorption, but their longer-term impact on body weight loss is thought to be due primarily to their lower energy density. Starches that are digested slowly in the small intestine, resistant starches (RS), contribute to a diet's fiber load. The worldwide epidemic of obesity has supported the incorporation of RS in commercial food products to curtail body weight gain.
The present study explored whether consumption of a beverage containing RS, from high amylose cornstarch (Amylose), will lead to higher satiety and lower energy intake (EI).
Preload beverages containing 75 gm Amylose, Glucose, or a Glucose-Amylose mixture were administered to young healthy females after an overnight fast and blood glucose and appetite measurements were taken at 0, 15, 30, 45, 60, 90, 120, 180 and 240 min. Calorie intake was assessed at a pizza meal at 2 h (Experiment 1) or 4 h (Experiment 2).
The glycemic responses were lower with Amylose: Glucose > Glucose-Amylose > Amylose = water Control (p < 0.0001). Appetite was not affected by the treatments (p > 0.05). EI was lower only after Glucose at 2 h, but unaffected by treatment after 4 h.
As high amylose cornstarch improves postprandial blood glucose response but has no effect on satiety and EI, a more careful analysis of its benefits for body weight loss is needed. The research was funded by the Research Office of Kuwait University, Grant # FF01/16.
TCTR20180815005.
本研究探讨了摄入含有高直链淀粉玉米淀粉（Amylose）的抗性淀粉（RS）饮料是否会导致更高的饱腹感和更低的能量摄入（EI）。
在禁食一夜后，给年轻健康的女性受试者服用含有 75 克 Amylose、葡萄糖或葡萄糖- Amylose 混合物的预负荷饮料，并在 0、15、30、45、60、90、120、180 和 240 分钟测量血糖和食欲。在 2 小时（实验 1）或 4 小时（实验 2）时评估比萨饼餐的热量摄入。
Amylose 的血糖反应较低：Glucose > Glucose-Amylose > Amylose = 水对照（p < 0.0001）。食欲不受处理影响（p > 0.05）。仅在 2 小时后 Glucose 时 EI 较低，但 4 小时后处理无影响。
由于高直链淀粉玉米淀粉改善了餐后血糖反应，但对饱腹感和 EI 没有影响，因此需要更仔细地分析其对体重减轻的益处。该研究由科威特大学研究办公室资助，资助号为 FF01/16。
