首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The Best and Worst Foods for Healthy Weight When it comes to keeping your weight down, a new study by Harvard researchers su
The Best and Worst Foods for Healthy Weight When it comes to keeping your weight down, a new study by Harvard researchers su
admin
2013-08-22
24
问题
The Best and Worst Foods for Healthy Weight
When it comes to keeping your weight down, a new study by Harvard researchers suggests that the quality of your food matters more than its calorie(卡路里)count.
By instinct.we know that eating a lot of hamburgers and French fries and drinking soda leads to more weight gain than eating fresh fruits, vegetables and brown rice. But in the most comprehensive and detailed study of its kind, researchers have figured out exactly how much weight gain is associated with the consumption of certain foods.
The worst food for your weight were potato chips, which led to more weight gain per serving(份)than any other food, the study found. The best food for your weight? Surprisingly, yogurt.
It matters, of course, how many total calories you take in each day, but the authors say the age-old advice simply to "eat less and exercise more" may be too simple. To control weight over the long term the study suggests that people benefit more by focusing on eating right, rather than less.
"For diet, conventional wisdom often recommends ’everything in moderation’, with a focus only on total calories consumed, "says Dr. Dariush Mozaffarian, lead author of the study. "Our results demonstrate that the quality of the diet — the types of food and drink that one consumes — is strongly linked to weight gain."
For each extra serving of potato chips eaten in a day, for instance, people gained 1.69 lbs. every four years. Among the other extra-fattening foods the study highlighted: potatoes. Baked, boiled, mashed(捣成泥的)or French fried, each extra serving of potatoes was associated with an average 1. 28-lb. weight gain.
So why would potatoes be particularly fattening? It’s not clear. Maybe because they’re generally eaten in large quantities, Mozaffarian says, or possibly because, as some previous research has shown, they are the type of food that causes big peaks in blood sugar and insulin(胰岛素), which tends to make people hungrier and overeat at their next meal. Other food like white bread, white rice, low-fiber breakfast cereal, candy and desserts may affect the body the same way, he says.
The findings are based on data from three large, long-term government-funded trials looking at diet, lifestyle and health in adults: the Nurses’ Health Study, the Nurses’ Health Study II, and the Health Professionals Follow-up Study. The new analysis involves 20 years of data on 120, 877 male and female participants from these three trials. Researchers tracked changes in participants’ eating and lifestyle habits — and weight — every four years.
Overall, the participants gained 2.4% of their body weight, in each four-year interval. Over the 20 years of follow up, that amounted to a nearly 17-lb. increase on the scale.
The data also showed that eating specific high-quality foods was linked with less weight gain over time. In fact, the more daily servings people ate of fruits, vegetables, nuts, whole grains and yogurt, the less weight they gained. The yogurt finding — each extra daily serving prevented 0.82lbs. of weight gain — was unexpected, Mozaffarian says: "This clearly deserves further attention to determine if this is cause-and-effect and, if so, why."
While diet was most strongly associated with weight gain, lifestyle behaviors mattered too. Exercise was a big one; those who most increased the amount they exercised gained 1.76 fewer pounds than those whose exercise patterns changed the least. Sleep was also a factor; people who slept less than six hours or more than eight hours a night were more likely to gain more weight. And alcohol appeared to be an effective fattener, with each additional drink per day associated with 0. 41 lb. of weight gain every four years.
Like several other previous studies, the Harvard research found an association between watching TV and ballooning weight. "TV watching has stronger links to weight gain than other activities that involves sitting, " says Mozaffarian, "likely because it encourages eating both while watching and afterward, due to the influence of food commercials. Turning off the TV is therefore very important — in particular, to improve diet. If TV must be watched, then it should be done without any eating and without any food or drinks advertising."
The study found that while individual food choices had only modest effects on weight, diet and lifestyle changes in total accounted for large differences over the long term: people who made the fewest dietary changes gained nearly 4 lbs. more every four years than those who made the most such changes. "Small dietary and other lifestyle changes can together make a big difference — for bad or good, " says Mozaffarian."That makes it very easy to gradually gain weight unintentionally, but also means that a little bit of attention to a handful of dietary and other lifestyle changes can prevent this."
The point is that you should be thinking about your diet and lifestyle habits in a comprehensive way. Healthy changes don’t have to be big, but they should be many. It would be wrongheaded to assume that simply cutting out potato chips, and doing nothing else, will magically make you thin — though it’s a good start.
On the potato chip finding, Marion Nestle, professor of nutrition at New York University and author of Food Politics, commented that the weight gain associated with chips and potatoes didn’t track very closely with what we know about how the typical American eats. For instance, how is it that potatoes were associated with more weight gain than desserts like cakes, cookies and pies, which are the leading source of calories in the average diet?
She says it may have less to do with chips per se, and more to do with the fact that people who eat potato chips may eat more calories and more junk overall; conversely, people who eat foods like fruit and yogurt are probably more health-conscious. "I think it’s likely that potato chips and French fries are markers for junk food diets, and yogurt is a marker for healthy diets, " says Nestle.
The study has some limitations, including that it relied on self-reports of portion size and used different serving sizes between foods. It also included a pretty similar population: white, educated adults.
But, in general, Nestle says, the findings echo nutrition experts’ advice for eating well. "The study has a clear and consistent message: if you want to gain weight, eat junk foods and drink sodas. If you want to maintain a healthy weight, eat healthy foods." This means following basic dietary recommendations and choosing relatively unprocessed foods — vegetables, meat, dairy, grains, fruits. And don’t drink too much alcohol.
The data from three large, long-term government-funded trials shows that eating specific high-quality foods was connected with______.
选项
A、less weight gain over time
B、healthy lifestyle behaviors
C、gaining 17-lb on average
D、further attention to high-quality foods
答案
A
解析
根据题干关键词specific high-quality foods定位到第十段第一句:The data also showed that eating specific high-quality foods was linked with less weight gain over time.由该句可知,这些数据表明食用特定的高质量的食物和长期体重的保持有关系。A)项符合文意。
转载请注明原文地址:https://jikaoti.com/ti/aCoFFFFM
0
大学英语四级
相关试题推荐
A、Youshouldn’texpressyourangerwhileangryandyou’dbetterwaituntilithascooleddown.B、Keepingangerinsidemayleadt
A、Bycreatingchancesofteamwork.B、Bycollectingmoneyforchildren.C、Bysupportingpeopleinwarareas.D、Byteachingchildr
TOEICistheTestofEnglishforInternationalCommunication.Itmeasuresthe【B1】______ofpeopletocommunicateintheworkplac
InformingtheWorldEveryday,thenewsoftheworldisrelayedtopeoplebyover300millioncopiesofthedailypapers,ov
A、Health.B、Age.C、Weight.D、Height.BWhatwasthetopphysiologicalrequirementforwomenfrom1985to1995?
Itisobviousthatwhileselfawarenessisahealthyquality
Oneofthemostinterestingparadoxes(矛盾)inAmericatodayisthatHarvardUniversity,theoldestinstitutionofhigherlearning
Oneofthemostinterestingparadoxes(矛盾)inAmericatodayisthatHarvardUniversity,theoldestinstitutionofhigherlearning
A、Exercisingtheentirebody.B、Havingyourbloodpressuretakendaily.C、Losingweightpriortoexercising.D、Weighinginbefor
A、Wearingarmweightswhileyouareswimming.B、Joggingenergeticallyinoneplaceforalongtime.C、Usingbicyclesthatrequir
随机试题
真理是指()
传染性废弃物应如何处理?
调合单体与塑料粉时,对其聚合的速度影响最大的因素是A.温度B.搅拌速度C.湿度D.单体量E.塑料粉量
强化服务的基本要求主要表现在()。
企业养老金计划即()。
在PowerPoint中,要设置幻灯片换页的效果为“盒状展开”,则应当执行()命令。
【2013年河北省第49题】小明和姐姐用2013年的台历做游戏,他们将12个月每一天的日历一一揭下,背面朝上放在一个盒子里,姐姐让小明一次性帮她抽出一张任意月份的30号或者31号。问小明一次至少应抽出多少张日历,才能保证满足姐姐的要求?
八国联军侵华时,联军司令德国人瓦德西承认:联军占领北京后,曾特许军队公开抢劫三日。其后更继以私人抢劫。北京居民所受之物质损失甚大,但其详细数目,亦复不易调查。近代以来,除了八国联军侵华外,资本一帝国主义以联军形式侵略中国的战争是()。
阅读材料,回答问题:在刚刚闭幕的全国两会上,“两高”报告提到“赵宇见义勇为案”“昆山反杀案”等热点案件,并对“正当防卫”“见义勇为”等备受关注的司法问题予以回应,赢得代表委员的热烈掌声。最高法工作报告提出“依法支持公民通过正当防卫同犯罪行为作斗争,保护见
Itisoneofthebodyparts.Itissentbypostmen.
最新回复
(
0
)