Miyoshi H, Okuda T, Oi Y, Koishi H
J Nutr Sci Vitaminol (Tokyo). 1986 Dec;32(6):581-9. doi: 10.3177/jnsv.32.581.
The effects of rice fiber on fecal weight, transit time, frequency of defecations, digestibility of nutrients and blood status were investigated in 5 healthy young men. Each of them consumed a brown rice diet and then a polished rice diet for 2 weeks respectively. Both diets contained 1.2 g protein per kg body weight. The brown rice diet contained 2 times as much dietary fiber as the polished rice diet. When they consumed the brown rice diet, it showed an increase of fecal weight and decrease of digestibility of energy, nitrogen and fat. Nitrogen balance was not significantly different and kept zero balance on both diets. Concentration of plasma cholesterol was not significantly different. The results suggest that rice fiber produced an increase in fecal weight, which is assumed to be effective in preventing colonic disease in advanced countries and does not affect plasma lipid level.
对5名健康年轻男性研究了米纤维对粪便重量、运输时间、排便频率、营养物质消化率及血液状况的影响。他们每人分别食用糙米饮食和精米饮食2周。两种饮食每千克体重均含1.2克蛋白质。糙米饮食中的膳食纤维含量是精米饮食的2倍。当他们食用糙米饮食时，粪便重量增加，能量、氮和脂肪的消化率降低。两种饮食的氮平衡无显著差异，均保持零平衡。血浆胆固醇浓度无显著差异。结果表明，米纤维可使粪便重量增加，这被认为在发达国家预防结肠疾病方面有效，且不影响血浆脂质水平。
