I love the Mythbusters – don’t you? I think that this show is one of the best that the Discovery Channel has ever produced. They are not they only ones who are on a mythbusting mission, though. In fact, there are many others who like to bust myths. Take the editor of Men’s Health over at MSN. An article called “The Truth Behind Five Food Myths” was recently published. Let us take a look at some of them.
Myth No. 1: High protein intake is harmful to your kidneys
The origin: Back in 1983, researchers first discovered that eating more protein increases your “glomerular filtration rate,” or GFR. Think of GFR as the amount of blood your kidneys are filtering per minute. From this finding, many scientists made the leap that a higher GFR places your kidneys under greater stress.
What science really shows: Nearly two decades ago, Dutch researchers found that while a protein-rich meal did boost GFR, it didn’t have an adverse effect on overall kidney function. In fact, there’s zero published research showing that downing hefty amounts of protein—specifically, up to 1.27 grams per pound of body weight a day—damages healthy kidneys.
The bottom line: As a rule of thumb, shoot to eat your target body weight in grams of protein daily. For example, if you’re a chubby 200 pounds and want to be a lean 180, then have 180 grams of protein a day. Likewise if you’re a skinny 150 pounds but want to be a muscular 180.
I really believed this myth – until now. Then again, the bottom line is that you have moderate your protein intake. Still, you can load up on those steaks every now and then.
译文:
终结食物背后的流言
我很喜欢流言终结者这个节目，你们呢？我认为这档节目是探索频道出品的最为出色的节目之一。然而他们并不是唯一的执行终结流言这一任务的团队，事实上，有很多人都喜欢揭露那些神秘流言背后的真相。就拿在MSN上的人类健康杂志的主编来说，最近发表了一篇名为五个食物流言背后的真相的文章，让我们来看看其中的一些片段。
流言一：摄入过多蛋白质对肾脏有害
起源：早在1983年，研究者们发现食用过多的蛋白质会增加你的“肾小球滤过率”，简称GFR。GFR被看作是肾脏每分钟过滤的血液总量。从这个发现中，许多科学家都跨越性的认为GFR的升高会对肾脏造成更大的压力。
科学的真正表明：近二十年前，荷兰的研究者们发现虽然富含蛋白质的饮食会使GFR升高，但这对于整个肾脏的功能并没有不良影响。事实上，在已经发表的报告中，没有一份能表明摄入①大量的蛋白质——即使每天高达占每磅体重的1.27克，会损害肾脏的健康。
结论②：依据经验来说，以你的目标体重为计算每日摄入蛋白质克数的依据。比如说，如果你偏胖体重为200磅，而你想要变的更苗条，希望是180磅，那你每天摄入的蛋白质总量应为180克。如果你偏瘦，只有150磅，而你希望更强壮，变成180磅，那你每天也该摄入180克。
我一直对这个流言深信不疑——直到现在。尽管结论依然表明应当控制好蛋白质的摄入量，但有时大吃一顿③牛排大餐也未尝不可。