绿叶菜人人所需,老年人则更是离不开绿叶菜.绿叶菜一般都具有特殊的营养和医疗价值.老人们要常吃些芹菜叶、芫荽、油菜、金花菜、荠菜、菠菜和苋菜 Green leafy vegetables are needed for all, and the elderly are even more likely to have green leafy vegetables. Green leafy vegetables generally have special nutritional and medical values. The elderly should eat celery leaves, coriander, canola, cauliflower, shepherd’s purse, spinach and Amaranth