不可不知 洋葱的8大神奇养生功效
洋葱，为外来果蔬，具有很高的营养价值，是养生菜必不可少的菜品。洋葱所含的“含硫有机化合物”及斛皮黄酮（又称槲皮酮）“，经由证实，对人体效能大多是这2种成份所促成的。此外3大营养素中以醣类和蛋白质含量较多，其中蛋白质中的含硫氨基酸及精氨酸可预防动脉硬化。而矿物质除了硫之外，还有很多的钒，可防止胆固醇附着于血管，预防心脏病；维生素则以维他命C最丰富。预防癌症胃癌、食道癌、大肠癌主要是因摄取过多盐份、烟熏制品、动防止老化蛋白质糖化会造成身体机能减退，产生和老化有关的AGE物质，洋葱可控制血糖，间接预防AGE生成，防止老化。而斛皮黄酮，是强力的抗氧化物质，能够抑制自由基所造成的老化。物脂肪…，而洋葱的含硫有机化合物，能够诱导致癌物质（如：亚硝酸盐）的解毒化酵素。降低血糖洋葱可当成抗糖尿病药喔！因为根据降低血糖临床试验，的确具有80％的效果，同时不会引起低血糖状态，是安全又有效的抗糖尿食品。改善便秘洋葱的硫磺成份在大肠与蛋白质，或肠内的细菌结合，形成硫化氢，能促进肠蠕动。丰富的可溶性食物纤维能刺激肠，使运动更旺盛，而寡糖也能抑制肠内坏菌增殖，有效改善女生常见的便秘症状。预防骨质疏松洋葱所含的斛皮黄酮有类似雌激素的作用，可和女性荷尔蒙或骨质疏松药物相匹敌，有研究报告，每天吃200-300g洋葱，可有效预防骨质疏松。改善皮肤问题谷胱甘月太能抑制黑色素生成，对湿疹、皮肤炎、荨麻疹或肝斑有改善作用。而斛皮黄酮可抗UV，具有美白效果。清血功能纤溶状态（溶解纤维使血循顺畅）的高低和高血压、高血脂、动脉硬化…都有关。根据实验，每周摄取足够洋葱的人纤溶活性最高，而不吃或少吃的纤溶活性低，可见洋葱能提高纤溶活性，达到清血作用。改善眼睛疲劳谷胱甘月太具有促进角膜胶原蛋白合成，维持水晶体的透明性。洋葱含丰富谷胱甘月太，实验发现可改善眼睛疲劳、眼睛模糊的效果。[float=left][list][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_9.shtml][img=100,66]http://y2.ifengimg.com/f04c9b92453d105f/2012/0822/xes_84a57532fe64f3062b8057894c67054c.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_0.shtml][img=100,66]http://y2.ifengimg.com/f04c9b92453d105f/2012/0822/xes_3fb45bf1eb56b58c8a98b7f74ca95904.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_1.shtml][img=100,66]http://y2.ifengimg.com/f04c9b92453d105f/2012/0822/xes_6c9292bdcd3fc8055ec0fe7f5be24563.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_2.shtml][img=100,66]http://y3.ifengimg.com/f04c9b92453d105f/2012/0822/xes_cbe662cdc209788ee7025ae1b6727378.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_3.shtml][img=100,66]http://y1.ifengimg.com/f04c9b92453d105f/2012/0822/xes_760678618ec6564c1d56a113e816cecc.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_4.shtml][img=100,66]http://y3.ifengimg.com/f04c9b92453d105f/2012/0822/xes_ea2a556cc15de5fc01119e05ab6b34ae.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_5.shtml][img=100,66]http://y2.ifengimg.com/f04c9b92453d105f/2012/0822/xes_e44a52699167bb20248ffe5adb2a4ebf.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_6.shtml][img=100,66]http://y2.ifengimg.com/f04c9b92453d105f/2012/0822/xes_a0e03ee71c2b0e86e3f18b56e0bfb1af.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_7.shtml][img=100,66]http://y2.ifengimg.com/f04c9b92453d105f/2012/0822/xes_b56b88ebb002e9ecd358bf42a5a55a3f.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_8.shtml][img=100,66]http://y3.ifengimg.com/f04c9b92453d105f/2012/0822/xes_b865828e5afeb27083642782861648f0.jpg[/img][/url][*][url=http://fashion.ifeng.com/health/diet/photo/detail_2012_08/22/16993093_9.shtml][img=100,66]http://y2.ifengimg.com/f04c9b92453d105f/2012/0822/xes_84a57532fe64f3062b8057894c67054c.jpg[/img][/url][/list][/float]
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