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到目前为止,我国栽培的蔬莱有80多种。其中常栽的有60多种。蔬幕种类繁多,不仅在调节季节供应和口味变化上起作用,而且各种蔬菜还有其特有的营养价值,起着促进人体发育,维持人类健康的作用,如果长期吃某种蔬菜,必然会造成营养失调。含维生素最高的有辣椒、菜花、韭菜、雪里蕻、苦瓜四种;胡萝卜、韭菜,菠菜是蔬菜中含胡萝卜素量最高的;凉薯、苋菜是两大含铁量的领先者:白菜类蔬菜中的各种维生索和矿物质含量居于蔬莱中等水平,但小白菜比大白菜的营养价值要高;在莴笋和甘兰类蔬菜中舍有丰富的维生素V,可治疗胃及十二指肠溃疡;洋葱中的洋葱精油可降低高血脂病和人血胆固醇,并能提高纤维蛋白的溶解活
So far, there are more than 80 varieties of cultivated vegetables in China. Of these, there are more than 60 species commonly planted. A wide variety of vegetables, not only in the regulation of seasonal supply and taste changes play a role, but also a variety of vegetables have their own unique nutritional value, play a role in promoting human development and human health, if long-term eating certain vegetables, will inevitably Cause malnutrition. Carrots, leeks, spinach is the highest content of vegetables with carotene; sweet potato, amaranth is the leader of two major iron content: cabbage vegetables Of all kinds of vitality cord and mineral content in medium-level vegetables, but cabbage cabbage than the nutritional value of higher; in the lettuce and sweet vegetables rich in vitamin V, can treat the stomach and the fingers Intestinal ulcer; onions in onion essential oils can reduce hyperlipidemia and human blood cholesterol, and can increase fibrinolytic activity