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
医学
Even as Americans have been gaining weight, they have cut their average fat intake from 36 to 34 percent of their total diets in
Even as Americans have been gaining weight, they have cut their average fat intake from 36 to 34 percent of their total diets in
admin
2013-12-06
12
问题
Even as Americans have been gaining weight, they have cut their average fat intake from 36 to 34 percent of their total diets in the past 15 years. And indeed, cutting fat to control or lose weight makes sense. Fat has nine calories per gram. Protein and carbohydrates have just four. Moreover, the body uses fewer calories to metabolize fat than it does to metabolize other foods. Compared with protein and carbohydrates — which break down into amino acids and simple sugars, respectively, and can be used to strengthen and energize the body — dietary fat is more easily converted to body fat. Therefore, it’s more likely to stay on buttocks, thighs and bellies.
But cutting fat from your diet doesn’t necessarily mean your body won’t store fat. For example, between nonfat and regular cookies, there’s trivial difference in calories because manufacturers make up for the loss of fat by adding sugar. Low-fat crackers, soups and dressings can also be just as high in calories as richer versions. No matter where the calories come from, overeating will still cause weight gain. The calories from fat just do it a little quicker. A Wisconsin computer programmer who decided with a diet coach to eat only 40 grams of fat a day learned the lesson firsthand. He wasn’t losing weight. Then he showed his food diary to his coach and revealed he’d been eating half a pound of jelly beans a day. "They don’t have any fat," he explains. But they had enough sugar to keep him from shedding an ounce.
Nonfat foods become add-on foods. When we add them to our diet, we actually increase the number of calories we eat per day and gain weight. That was borne out in a Pennsylvania State University study. For breakfast, Prof. Barbara Rolls gave two groups of women yogurt that contained exactly the same amount of calories. One group’s yogurt label said "high fat"—the other, "low fat." The "low fat" yogurt group ate significantly more calories later in the day than the other group. "People think they’ve saved fat and can indulge themselves later in the day with no adverse consequences," says Richard Mattes, a nutrition researcher at Purdue University. "But when they do that, they don’t compensate very precisely, and they often end up overdoing it."
According to the author,______has less calories.
选项
A、fat
B、protein and carbohydrates
C、amino acid
D、sugar
答案
B
解析
第一段第三句,和脂肪相比,每克蛋白质和碳水化合物只含有四个卡路里。
转载请注明原文地址:https://kaotiyun.com/show/IvU3777K
本试题收录于:
医学博士外语题库考研分类
0
医学博士外语
考研
相关试题推荐
A.清除病灶消灭死腔B.切开引流C.两者均可D.两者均不可慢性骨髓炎急性发作应采取的治疗是
Cultureshockmightbecalledanoccupationaldiseaseofpeoplewhohavebeensuddenlytransplantedabroad.Likemostailments,
Osteoporosisusedtobecalled"thesilentdisease"becauseitsvictimsdidn’tknowtheyhadituntilitwastoolateandthey
Twoequallybrilliantscientistsapplyforaprestigiousresearchfellowshipawardedbyatopscientificorganization.Oneiswh
A、Shedidpoorlyonphysics.B、ShegotaBinphysics.C、Shedidn’twantto.D、Shewasanaveragestudent.A女士讲到自己的物理只拿到了“D”,因而
TherewereredfacesatoneofBritain’sbiggestbanksrecently.Theyhadacceptedatelephoneordertobuy$100,000worthof
A、35million.B、34million.C、25million.D、20million.A此题为细节信息再现题。文章中提到:Asmanyas35millionAmericansexperiencechronicins
A、Onealwaysknowswhathismusclesaredoing.B、Oneperformssimpleactionswithoutworking.C、One’smusclesareusedonlytot
Backinthedarkages,circa1981,childrenallovertheworldweredyingofbacterialmeningitis.Hemophilusinfluenzatypeb(H
A、Hehasbeenworkingoutdoorslately.B、He’dliketogetsomeexercise.C、He’sagoodtennisplayer.D、Herarelyuseshiscompu
随机试题
患者,女,20岁。结喉两侧弥漫性肿大,边界不清,皮色如常,无疼痛,诊为气瘿。治疗应首选
如下图所示系统的自由度数是()。
监理工程师对勘察成果的审核与评定是勘察阶段最重要的监理工作,勘察成果应()。
不良贷款是指借款人未能按原定的贷款协议按时偿还()的贷款本息的贷款。
按照并购方的不同身份,可以将并购分为()。
随着人口红利终结,C国奶粉市场将进入残酷的存量竞争新周期,2020年行业洗牌和分化将加剧。国产大品牌在开始强势进攻3~5线市场,以争夺更大市场空间。同时,国产大品牌不愿错过任何增长的可能性,羊奶粉、A2概念和有机奶粉等细分品类新品迭出,让中小品牌难觅差异化
“学而不思则罔,思而不学则殆”的思想出自()。
某县溺水事故频发,对于该县公安机关应当采取的措施,下列哪些说法是正确的?()
土地革命战争时期毛泽东思想开始形成的标志有()
Giventhechoicebetweenspendinganeveningwithfriendsandtakingextratimeforhisschool-work,AndyKliseadmitshewould
最新回复
(
0
)