生菜是叶用莴苣的俗称,因可以生食而得名,又名团叶生菜、莴菜、千金菜等,是一二年生的菊科植物,原产于地中海沿岸。据记载于隋代传入我国,《农桑通诀》上有其栽培方法。现代科学测试,生菜含维生素C、B_1、B_2、菸酸、胡萝卜素、叶酸和多种矿物质。生菜体内的乳状液含有醣、甘露醇、树脂、蛋白质和莴苣素等,能刺激消化,增进食欲。据报道,叶用莴苣有驱寒、消炎、利尿作用,晚餐食用有 Lettuce is commonly known as leaf lettuce, because it can be eaten raw named, also known as Mission leaf lettuce, lettuce, Qianjin dishes, is a biennial Compositae, native to the Mediterranean coast. It is recorded in the Sui Dynasty into China, “Nong Sang Tong tactic” has its cultivation methods. Modern scientific testing, lettuce with vitamin C, B_1, B_2, niacin, carotene, folic acid and a variety of minerals. Lettuce body emulsion contains sugar, mannitol, resin, protein and lettuce, etc., can stimulate digestion and increase appetite. It is reported that leaves lettuce have cold, anti-inflammatory, diuretic effect, dinner food there