想控制体重,多补充纤维吧

 　　For better weight control, fiber¹ up!

　　想控制体重，多补充纤维吧！

　　The latest trick to fighting obesity² isn't a focus on eating less fat or sugar (although that would probably help): It's eating more fiber. And not just any kind of fiber. It should be the fermentable³ type. Microbes in the gut⁴ chow down on this type of fiber. As they break it down, they release a chemical that moves to the brain. There it curbs⁵ appetite.

　　最新的减肥方法不是减少脂肪和糖分的摄入（尽管吃多吃这些也可能会让你变胖），而是多吃纤维。这里所说的纤维并不是任何一种都可以，而是那种可以发酵的纤维。肠内的细菌会对这种类型纤维大快朵颐。当它们将其分解时会释放一种化学物质传送给大脑，此时食欲会被控制。

　　想控制体重,多补充纤维吧

　　Researchers at Imperial College London, in England, say their study is the first to link eating fiber to the brain hormones⁶ that help you feel full. They published their findings April 29 in Nature Communications.

　　英国帝国理工学院研究者称他们是首例把食用纤维和大脑荷尔蒙联系起来解释食用者会有饱腹感。4月29日他们在自然通讯上发表了这一结果。

　　Scientists have known that obese⁷ people tend to eat foods low in dietary fiber. At some level, that made sense. Fermentable fiber - fiber that is broken down by gut microbes - makes people feel full after eating somewhat less. Such fiber is found in fruits, vegetables, oats and barley⁸.

　　科学家们发现肥胖的人通常不会食用多纤维食物。在某种层面上这种做法合情合理。可发酵纤维，即可以被肠道细菌分解的纤维会让人们有饱腹感，尽管吃的很少。水果，蔬菜，燕麦等食物中含有此类纤维。

　　Hundreds of thousands of years ago, our paleolithic ancestors ate nearly 100 grams of fermentable fiber each day, says Gary Frost. He's a dietician who led the new study. Today, people's diets are very different. We eat only 10 to 20 grams of all types of fiber each day. Most comes from whole-grain wheat and bran. Those types do not break down in the gut, Frost notes. Modern diets also are full of convenience foods, such as snacks and frozen dinners. These tend to be high in fat and sugar. Add in our couch-potato lifestyle and it's a recipe for obesity.

　　新研究领导者兼营养学家Gary Frost称几十万年以前，我们的旧石器时代祖先每天吃掉近100克的发酵纤维，而今天人们的饮食较之从前大有改变。每天我们仅摄入10-20克各类型纤维，多数是全麦小麦和麦麸，这类粗纤维食物恰恰不会在肠胃里分解。现代饮食同时也充满了各类快捷食品，如冷冻餐和快餐等等。而这类食品正好富含脂肪和糖分，加入了我们"沙发土豆"的生活方式，助肥为虐。

　　Eating more fermentable fiber reduces the risk of becoming overweight or obese. But until the new study, exactly how the fiber did that was unclear.

　　食用更多可发酵纤维能够降低超重或者肥胖的危险，但是直到新研究的问世人们才具体的了解粗纤维是如何起作用的。

1 fiber   

n.纤维，纤维质

参考例句：

• The basic structural unit of yarn is the fiber.纤维是纱的基本结构单元。
• The material must be free of fiber clumps.这种材料必须无纤维块。

2 obesity   

n.肥胖，肥大

参考例句：

• 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。

3 fermentable   

adj.可发酵的，发酵性的

参考例句：

• We will discuss fermentable fiber more in Part 5 of this series. 我们将会在这系列的部份5讨论沸腾的纤维更多。 来自互联网
• The conditions of fermentable and enzymatic conversion of M14 were optimized. 对高活性突变株M14的细胞转化和发酵转化条件进行优化。 来自互联网

4 gut   

n.[pl.]胆量；内脏；adj.本能的；vt.取出内脏

参考例句：

• It is not always necessary to gut the fish prior to freezing.冷冻鱼之前并不总是需要先把内脏掏空。
• My immediate gut feeling was to refuse.我本能的直接反应是拒绝。

5 curbs   

v.限制，克制，抑制( curb的第三人称单数 )

参考例句：

• In executing his functions he is not bound by any legal curbs on his power. 在他履行职务时，他的权力是不受任何法律约束的。 来自辞典例句
• Curbs on air travel were being worked out and would shortly be announced. 限制航空旅行的有关规定正在拟定中，不久即将公布。 来自辞典例句

6 hormones   

n. 荷尔蒙，激素 名词hormone的复数形式

参考例句：

• This hormone interacts closely with other hormones in the body. 这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
• The adrenals produce a large per cent of a man's sex hormones. 肾上腺分泌人体的大部分性激素。

7 obese   

adj.过度肥胖的，肥大的

参考例句：

• The old man is really obese,it can't be healthy.那位老人确实过于肥胖了，不能算是健康。
• Being obese and lazy is dangerous to health.又胖又懒危害健康。

8 barley   

n.大麦，大麦粒

参考例句：

• They looked out across the fields of waving barley.他们朝田里望去,只见大麦随风摇摆。
• He cropped several acres with barley.他种了几英亩大麦。