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蜂蜜成分揭秘 没你想的那么健康
添加时间:2014-11-02 19:07:25 浏览次数: 作者:未知
  • It's commonly accepted that honey is better for us, but is that really the case? The short answer is because it is made of 55 per cent fructose (fruit sugar), eating honey is little more beneficial for our bodies than eating granulated sugar. And here's why.


    Refined table sugar (sucrose) is processed in our bodies by insulin, which is produced by the pancreas. Honey is about 55 per cent fructose, a fruit sugar that's processed by the liver. Despite the chemical difference, our bodies still react to honey in much same way as it reacts to refined sugar - with a blood-sugar spike2.


    This encourages the pancreas to produce insulin, which leads the body to store fat and gain weight. When eaten to excess, products containing fructose contribute to obesity3, heart problems and liver disease, just like products with granulated sugar. Other research has shown fructose drains minerals from your body.


    'There's an idea that sugar is a pantomime villain4 and honey is the pantomime hero,' says nutritional5 therapist Ian Marber. 'It's not accurate. Loading honey onto a bowl of porridge or breakfast cereal isn't much better for our bodies than layering that cereal up with granulated sugar.


    Honey is also high in calories - more than table sugar. A teaspoon6 of commercial natural honey contains about 22 calories, a teaspoon of sugar around 16 calories. Many people who swapped7 honey for sugar found they liberally poured it into yoghurts, herbal teas and the like imagining honey to be superior to other sugars. 'When people think something is low fat, they eat more,' says Ian Marber.


    'Companies use the word 'honey' instead of saying something is 'sweet' because they know it has an implied health benefit,' says Ian Marber.


    While raw, unrefined varieties of honey - from farms and health food stores - do contain trace vitamins and minerals; niacin, riboflavin, thiamine and vitamin B6, they only make up about two per cent of honey's total content.


    Many big-brand honeys and other 'natural' sweeteners in supermarkets have been processed - heated and filtered - to rid them of pollen8 and naturally-occurring bacteria in raw, varieties. But it also removes these vitamins and minerals.


    Dr Mica1 Engel, aesthetic9 doctor at London's Waterhouse Young Clinic says glucose10, fructose and carbs in honey will cause collagen damage - just like sugar. 'Benefits from the few extra vitamins some honey contains won't help to repair damage done to your collagen.'


    Added sugar (refined white sugar or honey) has no nutritional benefit. The NHS says added sugar can safely make up 10 per cent of a daily calorie intake11.


    But earlier this year I spoke12 to cardiologist Dr Aseem Malhotra, who is also science director of Action On Sugar, a body campaigning to reduce levels of sugar in our foods, who said the World Health Organisation13 recommends limiting all added sugars (including honey) to six teaspoons14 a day.


    'Contrary to what the food industry wants you to believe, the body doesn't need any carbohydrate15 from added sugar,' he said.


     11级    英文科普 


    1 mica [ˈmaɪkə] gjZyj   第12级
    • It could not pass through material impervious to water such as mica. 它不能通过云母这样的不透水的物质。
    • Because of its layered structure, mica is fissile. 因为是层状结构,云母很容易分成片。
    2 spike [spaɪk] lTNzO   第10级
    • The spike pierced the receipts and held them in order. 那个钉子穿过那些收据并使之按顺序排列。
    • They'll do anything to spike the guns of the opposition. 他们会使出各种手段来挫败对手。
    3 obesity [əʊ'bi:sətɪ] Dv1ya   第8级
    • One effect of overeating may be obesity. 吃得过多能导致肥胖。
    • Sugar and fat can more easily lead to obesity than some other foods. 糖和脂肪比其他食物更容易导致肥胖。
    4 villain [ˈvɪlən] ZL1zA   第9级
    • He was cast as the villain in the play. 他在戏里扮演反面角色。
    • The man who played the villain acted very well. 扮演恶棍的那个男演员演得很好。
    5 nutritional [njʊ'trɪʃənl] 4HRxN   第8级
    • A diet lacking in nutritional value will not keep a person healthy. 缺乏营养价值的饮食不能维持人的健康。
    • The labels on food products give a lot of information about their nutritional content. 食品上的标签提供很多关于营养成分的信息。
    6 teaspoon [ˈti:spu:n] SgLzim   第8级
    • Add one teaspoon of sugar. 加一小茶匙糖。
    • I need a teaspoon to stir my tea. 我需要一把茶匙搅一搅茶。
    7 swapped [s'wɒpt] 3982604ac592befc46570aef4e827102   第8级
    交换(工作)( swap的过去式和过去分词 ); 用…替换,把…换成,掉换(过来)
    • I liked her coat and she liked mine, so we swapped. 我喜欢她的外套,她喜欢我的外套,于是我们就交换了。
    • At half-time the manager swapped some of the players around. 经理在半场时把几名队员换下了场。
    8 pollen [ˈpɒlən] h1Uzz   第9级
    • Hummingbirds have discovered that nectar and pollen are very nutritious. 蜂鸟发现花蜜和花粉是很有营养的。
    • He developed an allergy to pollen. 他对花粉过敏。
    9 aesthetic [i:sˈθetɪk] px8zm   第7级
    • My aesthetic standards are quite different from his. 我的审美标准与他的大不相同。
    • The professor advanced a new aesthetic theory. 那位教授提出了新的美学理论。
    10 glucose [ˈglu:kəʊs] Fyiyz   第11级
    • I gave him an extra dose of glucose to pep him up. 我给他多注射了一剂葡萄糖以增强他的活力。
    • The doctor injected glucose into his patient's veins. 医生将葡萄糖注入病人的静脉。
    11 intake [ˈɪnteɪk] 44cyQ   第7级
    • Reduce your salt intake. 减少盐的摄入量。
    • There was a horrified intake of breath from every child. 所有的孩子都害怕地倒抽了一口凉气。
    12 spoke [spəʊk] XryyC   第11级
    n.(车轮的)辐条;轮辐;破坏某人的计划;阻挠某人的行动 v.讲,谈(speak的过去式);说;演说;从某种观点来说
    • They sourced the spoke nuts from our company. 他们的轮辐螺帽是从我们公司获得的。
    • The spokes of a wheel are the bars that connect the outer ring to the centre. 辐条是轮子上连接外圈与中心的条棒。
    13 organisation [ˌɔ:gənaɪ'zeɪʃən] organisation   第8级
    • The method of his organisation work is worth commending. 他的组织工作的方法值得称道。
    • His application for membership of the organisation was rejected. 他想要加入该组织的申请遭到了拒绝。
    14 teaspoons [ˈti:ˌspu:nz] 2373c24f8a940bcba4d8d55a1e80e98c   第8级
    n.茶匙( teaspoon的名词复数 );一茶匙的量
    • Add two teaspoons of salt. 加两小匙盐。
    • Add 3 heaped teaspoons of sugar. 加满满的三匙糖。 来自《简明英汉词典》
    15 carbohydrate [ˌkɑ:bəʊˈhaɪdreɪt] FTPy0   第7级
    • You should not have too much carbohydrate in your diet. 你日常饮食中不该有过多碳水化合物。
    • Cashew nuts are rich in carbohydrate. 腰果含丰富碳水化合物。

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