糧食中的澱粉大體可分為直鏈澱粉和支鏈澱粉這兩類
，借助直鏈澱粉含量檢測儀研究發現，直鏈澱粉含量越高的食物越不容易被消化吸收。而米線中的直鏈澱粉含量要高於大米。因此，相對於米飯、饅頭和麵條等來說，米線要難消化一些，因此胃腸功能不太好的人群不宜多吃。

nameweishenmezhiliandianfenhanlianggaodeshipinyaobihanliangdideshipinnanxiaohuane
？zheshiyinwei，dianfenzairentineidexiaohuaguocheng


，baokuozaikouqiangjichangdaozhongjingdianfenmeidezuoyong，fenjieweimaiyatang

、糊hu精jing等deng
，再zai進jin一yi步bu分fen解jie為wei葡pu萄tao糖tang後hou被bei吸xi收shou。一yi般ban認ren為wei
，直zhi鏈lian澱dian粉fen的de消xiao化hua速su度du比bi支zhi鏈lian澱dian粉fen稍shao慢man
，直zhi鏈lian澱dian粉fen含han量liang高gao的de糧liang食shi，通tong常chang血xue糖tang反fan應ying會hui低di於yu支zhi鏈lian澱dian粉fen高gao的de品pin種zhong。可ke能neng的de原yuan因yin在zai於yu，直zhi鏈lian澱dian粉fen分fen子zi間jian的de結jie構gou較jiao緊jin密mi，烹peng煮zhu時shi難nan以yi分fen解jie開kai，消xiao化hua過guo程cheng中zhong與yu澱dian粉fen酶mei接jie觸chu較jiao少shao。相xiang反fan
，由you於yu支zhi鏈lian澱dian粉fen分fen支zhi狀zhuang結jie構gou較jiao多duo，更geng鬆song散san
，易yi吸xi水shui，與yu澱dian粉fen酶mei接jie觸chu麵mian積ji更geng大da，所suo以yi能neng較jiao快kuai被bei分fen解jie。另ling外wai，直zhi鏈lian澱dian粉fen和he支zhi鏈lian澱dian粉fen在zai經jing過guo烹peng煮zhu後hou會hui發fa生sheng糊hu化hua。在zai同tong樣yang的de烹peng煮zhu條tiao件jian下xia，直zhi鏈lian澱dian粉fen的de糊hu化hua程cheng度du低di於yu支zhi鏈lian澱dian粉fen，不bu易yi將jiang其qi澱dian粉fen粒li分fen散san於yu水shui中zhong
，也ye不bu易yi被bei澱dian粉fen酶mei所suo消xiao化hua。

yinci，zaixiandai，jiezhuzhiliandianfenhanliangjianceyiyanjiuzhiliandianfenhanliangyumixianxiaohuatexingdeguanxi，keyibangzhutigaomixiandepinzhi，shengchanchugengjiafuhexiandaiyaoqiudejiankangshipin。