Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul, RS, Brazil.
Area of Knowledge of Life Science, University of Caxias do Sul, Caxias do Sul, RS, Brazil.
Nutrition. 2019 Jan;57:109-114. doi: 10.1016/j.nut.2018.05.026. Epub 2018 Jun 19.
Grape juice is a drink that is rich in phenolic compounds, which are important natural antioxidants that reduce the incidence of diseases linked to oxidative stress including cardiovascular disease. Studies on the effects of purple grape juice supplementation have already been conducted; however, there are no data on the effects of the consumption of white grape juice (WGJ) to date. The aim of this study was to evaluate the effects of WGJ supplementation on body mass index, waist and abdominal circumference, blood pressure and glucose, insulin, oxidative damage, and lipid profile in women.
A total of 25 women, ages 50 to 67 y, were included in this study. The volunteers were instructed to consume 7 mL/Kg/d of WGJ (Vitis labrusca) without other changes in diet energy consumption or habitual lifestyle. The supplementation occurred over 30 d. Anthropometric data and blood samples were collected before and after the intervention.
Supplementation with WGJ reduced the women's body mass index and waist and abdominal circumference (P < 0.001). There were no significant differences in blood pressure before and after the consumption of WGJ. In addition, no changes in blood glucose, insulin, and levels of oxidative damage were found. Women who supplemented with WGJ showed an increase of 16% in high-density lipoprotein cholesterol levels.
These results demonstrate that the consumption of WGJ can improve metabolic parameters in women, which may help reduce the risk of cardiovascular diseases.
葡萄汁是一种富含酚类化合物的饮品，这些化合物是重要的天然抗氧化剂，可以降低包括心血管疾病在内的与氧化应激相关疾病的发病率。已经有关于紫葡萄汁补充剂影响的研究；然而，迄今为止，还没有关于白葡萄汁（WGJ）消费影响的数据。本研究旨在评估 WGJ 补充对女性体重指数、腰围和腹围、血压和血糖、胰岛素、氧化损伤以及血脂谱的影响。
共有 25 名年龄在 50 至 67 岁的女性参与了这项研究。志愿者被指示每天摄入 7 毫升/公斤的 WGJ（Vitis labrusca），而不改变饮食能量摄入或习惯性生活方式。补充剂持续 30 天。在干预前后采集人体测量数据和血液样本。
WGJ 的补充降低了女性的体重指数和腰围和腹围（P < 0.001）。补充 WGJ 前后血压没有显著差异。此外，血糖、胰岛素和氧化损伤水平没有变化。补充 WGJ 的女性高密度脂蛋白胆固醇水平增加了 16%。
这些结果表明，饮用 WGJ 可以改善女性的代谢参数，这可能有助于降低心血管疾病的风险。
