价钱高的蔬菜不一定营养价值高。不少人上街买菜,以价格高作为蔬菜好坏的标准。往往以为价钱高,其营养价值也高。其实并非如此。蔬菜营养价值的高低,取决于蔬菜本身所含的铁、钙、钾、无机盐、维生素含量的多少,并不取决于价格的高低。蔬菜越新鲜并不一定食用安全。一般人上市 High prices of vegetables is not necessarily high nutritional value. Many people go to the streets to buy food, high prices as a vegetable standard. Often think that high prices, its nutritional value is also high. Actually not the case. The nutritional value of vegetables depends on the vegetable itself contains iron, calcium, potassium, inorganic salts, vitamin content, does not depend on the price level. The more fresh vegetables are not necessarily safe to eat. Most people listed