补充牛奶和大豆蛋白有助降血压

美国的一项新研究成果显示,高血压患者补充牛奶蛋白和大豆蛋白有助于降低血压。

美国杜兰大学公共卫生学院的研究人员7月18日在学术刊物《循环》(Circulation)的网络版上报告说,他们选取352名高血压患者,将其分成3组,分别每日服用40克牛奶蛋白补充剂、同样数量的大豆蛋白和碳水化合物补充剂。

连续服用8周后,研究人员发现,服用大豆蛋白补充剂的患者,其收缩压降低了2毫米汞柱,服用牛奶蛋白补充剂者的收缩压降低了2.3毫米汞柱。而服用碳水化合物补充剂的患者,其血压没有下降。

此前有研究发现,收缩压降低2毫米汞柱,意味着因中风致死的风险减少 6%,因心脏病致死的风险减少4%。美国目前有近7500万高血压患者,他们患心脏病、中风和肾损伤的风险较高。(生物谷 Bioon.com)

生物谷推荐原文出处:

Circulation      doi: 10.1161/ Circulationha.110.009159

Effect of Dietary Protein Supplementation on Blood Pressure A Randomized, Controlled Trial

Jiang He, MD, PhD; Marion R. Wofford, MD; Kristi Reynolds, PhD, MPH; Jing Chen, MD, MSc; Chung-Shiuan Chen, MS; Leann Myers, PhD; Deborah L. Minor, PharmD; Patricia J. Elmer, PhD; Daniel W. Jones, MD; Paul K. Whelton, MD, MSc

Observational studies have reported an inverse association between dietary protein intake and blood pressure (BP). We compared the effect of soy protein, milk protein, and carbohydrate supplementation on BP among healthy adults. The results from this randomized, controlled trial indicate that both soy and milk protein intake reduce systolic BP compared with a high-glycemic-index refined carbohydrate among patients with prehypertension and stage 1 hypertension. Furthermore, these findings suggest that partially replacing carbohydrate with soy or milk protein might be an important component of nutrition intervention strategies for the prevention and treatment of hypertension.