快餐因其方便、省时、经济,已成为大众化食品。不过,快餐食品大多含高脂肪、高盐分,还缺乏维生素和矿物质等营养素,常吃对健康不利。快餐为何被称为“垃圾食品”快餐是指能够迅速提供顾客食用的饭食,如汉堡包、盒饭等。如今,大家都习惯将炸薯条、炸鸡、方便面、饼干、罐头、冷冻甜食、可乐等归为快餐食品。“垃圾食品”一般指那些高热量、高盐和高糖,且其他营养素又相对缺乏的食物,常吃这类食品不仅会引起人体营养素缺乏,还可能引起肥胖症、心脏病, Fast food because of its convenience, time-saving, economic, has become a popular food. However, most fast foods contain high-fat, high salt, but also the lack of vitamins and minerals and other nutrients, eat bad health. Why fast food is called “junk food” Fast food refers to meals that can quickly provide customers with food such as hamburgers, lunchboxes and the like. Today, everyone is accustomed to French fries, fried chicken, instant noodles, biscuits, canned food, frozen desserts, cola and other classified as fast food. Junk food generally refers to those high in calories, high salt and high sugar, and other nutrients are relatively scarce food, eat these foods not only cause the body’s lack of nutrients, but also may cause obesity, heart disease,