Dried lettuce is lettuce as the main material of the dish, the lettuce species of the Chrysanthemum family lettuce, can form a variety of fleshy tender stems, one, two years of herbs, the stem is edible, white green stem skin, stem meat brittle, young green stem green, mature change white green, with the opening of thinning, diuretic milk, strong body, wide bowel bowel effect.1, opening and clearing: dried lettuce can stimulate the secretion of digestive enzymes, increase appetite, can enhance the secretion of gastric juice, digestive glands and bile secretion, thereby promoting the function of the digestive organs, digestive function weakened, reduced acidity in the digestive tract and constipation patients are especially beneficial.2, diuretic milk: the potassium content of dried asparagus is higher than the sodium content, which is conducive to the balance of water and electrolytes in the body, promote urination and milk secretion, and have a certain effect on hypertension, edema, and heart patients.3, strong body: dried lettuce has the function of regulating the nervous system, and its organic compounds are rich in iron elements that can be absorbed by the human body, which is beneficial to patients with iron deficiency anemia.4, wide bowel laxation: dried lettuce contains a lot of plant cellulose, can promote intestinal wall peristalsis, digestive tract, help stool excretion, can be used to relieve constipation.莴笋干是以莴笋为主材的菜肴，菊科莴苣属莴苣种，能形成肉质嫩茎的变种，一、二年生草本植物，地上茎可供食用，茎皮白绿色，茎肉质脆嫩，幼嫩茎翠绿，成熟后转变白绿色，具有开通疏利、利尿通乳、强壮机体、宽肠通便的功效。1、开通疏利：莴笋干可刺激消化酶分泌，增进食欲，可增强胃液、消化腺的分泌和胆汁的分泌，从而促进各消化器官的功能，对消化功能减弱、消化道中酸性降低和便秘的病人尤其有利。2、利尿通乳：莴笋干的钾含量高于钠含量，有利于体内的水、电解质平衡，促进排尿和乳汁的分泌，对高血压、水肿、心脏病人有一定的作用。3、强壮机体：莴苣干具有调节神经系统功能的作用，其所含有机化含物中富含人体可吸收的铁元素，对缺铁性贫血病人有利。4、宽肠通便：莴苣干含有大量植物纤维素，能促进肠壁蠕动，通利消化道，帮助大便排泄，可用于缓解便秘。
