水和膳食纤维的生理功能和需求量.doc

水和膳食纤维的生理功能和需求量 导语：关于水和膳食纤维的生理功能和需求量的知识你知道多少?如果还不清楚的话可以看看下文，毕竟2017第一次公共营养师考试快要到来了。 1、水的生理功能和需要量 生理功能： (1)消化食物，溶解营养物质，传送养分到各个组织，担负吸收和搬运的任务; (2)排泄人体新陈代谢产生的废物 ; (3)保持细胞形态，提高代谢作用; (4)调节体液粘度，改善体液组织的循环; (5)调节人体体温，保持皮肤湿润与弹性。 需要量：每消耗1kcal能量，水需要量为 每日大约2500ml 2、膳食纤维的的生理功能、参考摄入量与食物来源 生理功能： (1)在口腔里，增加咀嚼，刺激唾液的分泌; (2)通便的功能; (3)防治憩室病; (4)预防压挤病; (5)防癌; (6)防治胆结石; (7)防治高血脂、糖尿病，有降低血脂，预防冠心病的作用; (8)防治肥胖病; (9)吸附某些食物添加剂、农药、洗涤剂等化学物质; (10)补充植物雌激素; (11)膳食纤维中的果胶可延长食物在肠内的停留时间、降低葡萄糖的吸收速度，使进餐后血糖不会急剧上升，有利于糖尿病病情的改善; 需要量： 低能量(1800kcaL)膳食为25g/d;中能量膳食(2400kcaL)为30g/d;高能量膳食(2800kcaL)膳食为35g/d，400克蔬菜，25克杂豆或粗粮，100克水果，300克谷类 Plenary Session of the 15th CPC Central Committee, two session of the five plenary meeting spirit, fully implement the Scientific Outlook on Development based XX youth career development planning in accordance with the 11th Five-Year , building a first-class team, with first-class team. First-class performance, the overall requirements of first-class image of the tree , focusing on human services, standardized management, work fine, first-class achievements , give full play to staff assistant, supervision and inspection, comprehensive coordination, service guarantee, focus on the global and group work of the Communist Youth League in the city Municipal Party Central work, and strive to improve the decision-making ability, comprehensive coordination ability, writing ability, supervision ability, logistics ability, innovation ability, continuously consolidate and maintain the education on Party membersadvancement activities and enhance awareness of the Communist Youth League education achievements, and vigorously promote the construction of civilization advanced units, units and staff home building activities, balanced, focused, pragmatic, innovation, high standard, high quality, high level, high efficiency to complete various tasks throughout the year.First, pay close attent