McIntosh G H, Whyte J, McArthur R, Nestel P J
CSIRO Division of Human Nutrition, Adelaide, South Australia.
Am J Clin Nutr. 1991 May;53(5):1205-9. doi: 10.1093/ajcn/53.5.1205.
Twenty-one mildly hypercholesterolemic men aged 30-59 y were provided with comparable barley and wheat foods for each of 4 wk in a crossover-designed experiment. The purpose of the study was to examine the influence of two sources of dietary fiber (nonstarch polysaccharides, NSP) on blood lipids and glucose concentrations. Barley contains beta-glucan as a source of soluble dietary fiber (DF) whereas wheat contains the largely insoluble cellulose and hemicellulose fiber. Total dietary fiber increased from a previous intake of 21-38 g/d during the period of study for the two groups. Consumption of barley relative to wheat foods was associated with a significant fall in both plasma total cholesterol (6%, P less than 0.05) and in low-density-lipoprotein cholesterol (7%, P less than 0.02) whereas triglyceride and glucose concentrations did not change significantly. It is concluded that barley dietary fiber is more effective than wheat dietary fiber at lowering blood cholesterol in hypercholesterolemic men.
在一项交叉设计实验中，为21名年龄在30至59岁之间的轻度高胆固醇血症男性提供了为期4周的等量大麦和小麦食品。该研究的目的是检验两种膳食纤维来源（非淀粉多糖，NSP）对血脂和血糖浓度的影响。大麦含有β-葡聚糖作为可溶性膳食纤维（DF）的来源，而小麦主要含有不溶性纤维素和半纤维素纤维。在研究期间，两组的总膳食纤维摄入量从之前的每日21 - 38克增加。与食用小麦食品相比，食用大麦与血浆总胆固醇显著下降（6%，P < 0.05）和低密度脂蛋白胆固醇下降（7%，P < 0.02）相关，而甘油三酯和血糖浓度没有显著变化。得出的结论是，在降低高胆固醇血症男性的血液胆固醇方面，大麦膳食纤维比小麦膳食纤维更有效。
