Does soy sauce make people’s skin black Science and technology — people’s Web-vidalia

Does soy sauce make people’s skin black? Science and technology — people.com.cn Chinese traditional diet culture, often "eat what", so some people worry that eating black and brown sauce will make the skin black. So – does soy sauce make people’s skin black? Mr. Chen and his wife’s skin is black, since their daughter was born, they have been worried about her daughter’s skin black. Listen to people say "eat soy sauce, skin will be black", so ordinary home cooking, Mr. Chen are trying not to put soy sauce. However, with the growth of her daughter, her skin color is still darker than the other children. Mr. Chen is very confused, "eat soy sauce will be black" argument is credible? "Eating soy sauce will be black" no scientific basis, in the eyes of experts in the Department of Dermatology, soy sauce eat more will lead to skin darkening statement, there is no scientific basis. China Academy of Medical Sciences Institute of dermatology outpatient department director Zhang Guoyi told Technology Daily reporter: China traditional diet culture, they often eat what ‘, which caused a lot of misunderstanding; eat black and brown sauce will make people worry about the skin black, even with this kind of argument be handed down from age to age. But in fact, soy sauce is a condiment, is made from fermented grain, is the main component of amino acids, organic acids, carbohydrate and pigment, and other food, after eating will be decomposed into substance absorbed by the body, do not have directly into the blood to the skin we have not been found; increased light sensitivity, will not affect the body’s hormone synthesis. And soy sauce contains a kind of melanin called melanin, which is a natural pigment, after entering the gastrointestinal tract is basically decomposed, will not be absorbed by the body." Zhang Guoyi jokes, "if you eat soy sauce people will become black, then drink milk can become white?" Reporter survey found that a lot of people for skin wounds when fasting soy sauce is still firmly convinced. Zhang Guoyi also refuted this view. "Wound healing has a relationship with the metabolism of the skin, mainly fibroblasts to complete; local inflammation, stimulate fibroblast proliferation, promote wound healing. But the inflammation process, some people will stimulate the pigment cell, causes its function active, relative melanin produces too much pigmentation, wound will appear black point, but never mind, that is in the process of black skin repair, long after will slowly disappear. It has nothing to do with dark soy sauce." Does coffee make your complexion black? In addition to soy sauce, a case whether drinking coffee will make the skin black and many beautiful people heart. Reporters access to online information found that the beauty of coffee effect has also been controversial. There are two main points: one is the caffeine in coffee stimulates the secretion of epinephrine, leading to melanin cells; two is not only black coffee, drinking coffee can also improve the skin rough phenomenon, because caffeine can promote digestion, accelerate the The new supersedes the old. Who is right or who is wrong about these two views? Zhang Guoyi said: "diet through the digestive tract absorption, and the color of the skin is basically no relationship.". As for the above two points of view, can not say right. Because coffee has no definite effect on beauty

吃酱油会让人皮肤变黑吗?–科技–人民网 中国传统饮食文化中,常有“吃什么补什么”之说,因此有人担心吃黑褐色的酱油会让人皮肤变黑。那么――吃酱油会让人皮肤变黑吗? 陈先生和妻子的皮肤都比较黑,自女儿出生后,他们一直担心女儿的皮肤黑。听人说“吃酱油皮肤会变黑”,于是平常家里做菜陈先生都尽量不放酱油。然而,随着女儿的成长,她的肤色还是比其他小朋友都黑一些。陈先生很是疑惑,“吃酱油会变黑”的说法是否可信呢? “吃酱油会变黑”毫无科学依据 在皮肤科专家眼里,酱油吃多了会导致皮肤变黑的说法,毫无科学依据。 中国医学科学院皮肤病研究所门诊部主任张国毅告诉科技日报记者:“中国传统饮食文化中,常有‘吃什么补什么’之说,这造成了很多误解;吃黑褐色的酱油会让人担心皮肤变黑,甚至有了这种代代相传的说法。但事实上,酱油只是一种调味品,是通过粮食发酵后制成,主要成分是氨基酸、有机酸、糖类及色素,和其他食物一样,食用后会被分解,转化成被人体吸收的物质,并不具备直接进入血液就到我们的皮肤部位;目前也没有发现有增加光敏感的作用,也不会影响人体的激素合成。而酱油中含有一种叫做类黑素的色素,这是一种天然色素,在进入胃肠道后基本被分解,不会被人体吸收。” 张国毅戏称,如果吃酱油人会变黑的话,那么多喝牛奶就能变成白人了吗? 记者调查发现,很多人对于皮肤有伤口时要禁食酱油这一点还是深信不疑的。 张国毅对这一观点也进行了反驳。“伤口的愈合与皮肤代谢有关系,主要是成纤维细胞来完成;局部有炎症,刺激成纤维细胞增殖,促进伤口愈合。但是有炎症的过程中,有一部分人就会刺激色素细胞,导致其功能活跃,相对的黑色素产生过多,出现色素沉着,伤口会显得黑一点,但是没关系,黑说明正处于皮肤修复的过程,长好后就会慢慢消掉了。这与吃深色的酱油没有什么关系。” 喝咖啡会让肤色变黑吗? 除了酱油,喝咖啡是否会让皮肤变黑也是许多爱美人士心头的一大悬案。 记者查阅网上资料发现,对于咖啡的美容效果也一直颇有争议。主要有两种观点:一是咖啡里面的咖啡因刺激肾上腺素分泌,导致黑色素细胞的生成;二是咖啡不仅不会使人变黑,饮用咖啡还可以改善皮肤粗糙的现象,因为咖啡因会加速新陈代谢、促进消化。 这两种观点究竟谁对谁错呢? 张国毅介绍说:“饮食通过消化道吸收,与人体皮肤的色泽基本没有关系。至于以上两种观点,都不能说正确。因为咖啡对美容的效果没有太确切的科学依据。喝咖啡是一种生活习惯问题,顶多影响中枢神经系统,与皮肤没什么关系。” 复旦大学皮肤学博士谭庆梅也认为:“吃酱油喝咖啡导致肤色变黑是又一个毫无科学依据的传言,虽然两者都是有颜色的食物,但不会沉积在皮肤上。” 而对于网上流传的《美国皮肤病学会杂志》的一篇报道称,凭借咖啡浆果提取物中富含的高浓度抗氧化能力很强的多酚,咖啡对皮肤具有潜在的抗衰老作用。张国毅也表示:“咖啡或茶中的多酚确实在动物实验或细胞实验中有抗氧化抗衰老的现象,但是在临床上能起到多大作用,很难观察出来。一个是关键性指标不怎么可靠,另一个是需要很大量才达到效果,一般人很难吃到那么大的量。” 肤色深浅与哪些因素有关 事实上,像本文开头的陈先生一样困惑的人大有人在,他们最爱问医生:“不想皮肤黑该戒掉什么食物,要想皮肤白又该多吃什么食物?”这类问题让皮肤科专家哭笑不得。 “皮肤的色泽主要是遗传,除了遗传,还有几个因素。一个是血红蛋白的状态,如果是氧和状态,皮肤看上去会细腻些。另一个是类胡萝卜素,吃了以后会变黄。”张国毅介绍,“不过,影响肤色的最主要因素还是黑色素,黑色素多,皮肤就黑,反之就白一些。导致黑色素产生的内在因素里,最常见的是促黑激素,还有雌激素、孕激素,所以女性怀孕期间,色素沉着会增加。外界因素最主要的就是日晒,中长波紫外线的照射会使皮肤变黑,其他一些因素都是次要的。如果想要美白,做好防晒是很重要的。” 谭庆梅表示:“只有两类饮食习惯会诱发皮肤色素沉积。一是每天进食大量含胡萝卜素丰富的食物(如胡萝卜、芒果等),机体无法及时转化就会沉积在皮肤上。二是每天进食大量光敏性食物(如芹菜、灰菜等),既会诱发光敏性皮炎,也可能诱发色素沉积。” 对此,张国毅补充道:“胡萝卜素吃多了,皮肤会变黄,但是人体可以慢慢代谢掉。感光性食物食用后容易引起光敏反应,但不一定会引起色素增加,有的会引起炎症后的色素沉着,但停止食用之后,色素沉着也会消失。” 对于美容界流行的“白天不要食用芹菜香菜等感光性食物”的说法,张国毅表示:“感光性食物也不是人人都会引起光敏反应,有很大的个体差异,只是某些人会引起光敏反应。而且以我多年经验看,食用芹菜、香菜引起光敏反应的很少,灰菜、马兰头、无花果引起光敏反应的相对较多。因此白天不要吃芹菜香菜的说法,也不值得推崇。” (管晶晶)相关的主题文章: