洋葱真不愧为“蔬菜皇后

葱头又名洋葱,作为蔬菜已有5000余年的历史,洋葱含有丰富的钙、磷、铁、维生素B1、维生素C、胡萝卜素、尼克酸、前列腺素A、二烯丙基二硫化物及硫氨基酸等成分,其中的硫氨基酸具有降低血脂和血压的功效,前列腺素A具有扩张血管、降低血黏度、预防血栓的作用。洋葱还富含微量元素硒,能降低癌症的发生率。一般成年人每日生吃50-80克洋葱的保健作用十分显著,真不愧为“蔬菜皇后”。

每天吃洋葱,结果发现洋葱里所含的化合物也能阻止血小板凝结,并加速血液凝块溶解。所以,当你享用高脂肪食物时,最好能搭配些许洋葱,将有助于抵销高脂肪食物引起的血液凝块;所以说牛排通常搭配洋葱一起吃,是很有道理的。洋葱做菜不但味道极佳,且营养丰富。其实洋葱属碱性食物,并含有糖、无机盐、锌、硒(抗癌物质)、磷、硫等。

1、所含前列腺素A是种较强的血管扩张剂,可对抗儿茶酚胺等升压物质,促进钠盐排泄,有降血压作用;

2、所含硫化物能促进脂肪代谢,具有降血脂、抗动脉硬化作用,若每天食用50-70克洋葱,其降血脂作用比服降脂药安妥明还强;

3、洋葱所含类黄酮能降低血小板的粘滞性,常吃洋葱可预防血栓,减少心梗和脑血栓概率;

4、洋葱含有与降糖药甲磺丁脲相似的有机物,能明显降低血糖含量;

5、所含硫化物、微量元素硒等,能抑制胃癌、食道癌、结肠癌、乳腺癌等;

6、洋葱所含挥发油能助性,老人常吃洋葱可提高性生活质量;

7、洋葱可提高实验鼠的骨密度,常吃洋葱可预防骨质疏松;

8、洋葱富含维生素C、尼克酸,它们能促进细胞间质的形成和损伤细胞的修复,使皮肤光洁、红润而富有弹性,具美容作用。所含硫质、维生素E等,能阻止不饱和脂肪酸生成脂褐质色素,可预防老年斑。另外,洋葱含抗菌、抗炎物质,吃洋葱可防治肠炎痢疾。

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About baozulin

baozulin is a senior e-business consultant with particular expertise in the area of Internet and web design and web translations. A specialist in site promotion and strategic planning, He has worked with many different organizations, familiar with many different field, including Teaching English in middle school, mold making for plastic products, Financial management, canned food industries, cooking for hotel….to learn more on me please visit the web site at: http://baozulin.heliohost.org/717/e
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