在日常生活中,一些蔬菜叶及根茎经常被弃之,如白菜、菠菜,人们习惯吃其茎叶,而不懂得烹调菜根;莴苣、芹菜则吃其茎而弃去叶。据营养学家研究分析,白菜根、菠菜根所含的铁与胡萝卜素比其茎叶高,莴苣叶所含的维生素C是茎的十几倍,而芹菜叶则含有大量的胡萝卜素和维生素C。在家庭烹调中,如能将其烹调 In everyday life, some leaves and roots of vegetables are often discarded, such as cabbage and spinach. People are accustomed to eating stems and leaves without knowing how to cook them. Lettuce and celery eat their stems and discard leaves. According to nutritionists research and analysis, cabbage root, spinach root contains iron and carotene than its stems and leaves, lettuce leaves contain vitamin C is ten times the stem, while celery leaves contain a lot of carotene and vitamins C. In home cooking, if it can be cooked