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
Many people have been keeping on diet in the belief that cutting fat automatically cuts the risk of heart disease and cancer, to
Many people have been keeping on diet in the belief that cutting fat automatically cuts the risk of heart disease and cancer, to
admin
2013-11-30
30
问题
Many people have been keeping on diet in the belief that cutting fat automatically cuts the risk of heart disease and cancer, too. Not so, says research published last week in the Journal of the A-merican Medical Association. Women who trimmed the fat from their diets were just as vulnerable to colon cancer, breast cancer, and heart disease as women who did not.
The message? A low-fat diet isn’ t equivalent to a healthful diet, says Marcia Stefanick, a physiologist at Stanford University’ s Prevention Research Center, who helped run the government-sponsored study. Some 49,000 women between ages 50 and 79 were divided into two groups and followed for an average of about eight years as part of the Women’ s Health Initiative. One group was instructed to cut fat intake to 20 percent of total calories and to eat at least five daily servings of fruits and vegetables and six of grains. The other women were left to eat as they pleased. In the end, both groups had about the same occurrence of colorectal cancer, stroke, and heart disease. A slight difference in the rate of breast cancer among the lower-fat-diet women might be explained by chance alone.
There is hardly a green light to go on a junk-food binge, though, researchers’ caution. For one thing, the women on the diet didn’ t hit their target; they whittled fat intake just to 29 percent—from about 35 percent—by the end of the sixth year of the study. Moreover, there commended diet made no distinction between "good" unsaturated fats and "bad" saturated fats and trans fats, whose importance to heart health has been recognized since the data-gathering started. And since all the women in the study were eating fairly healthfully beforehand, it’ s possible that the small changes in vegetable and grain consumption by the dieting group weren’ t big enough that any benefits registered. Rather than focus on total fat intake, Stefanick advises, go easy on foods containing saturated fats and trans fats and eat more vegetables and fruits and whole grains.
Long-term health may depend more on achieving a healthy body weight and getting regular exercise than on cutting out fat, says Tim Byers, an epidemiologist at the University of Colorado Health Sciences Center in Denver. Overweight people who " lower fat but don’ t control calories can only make tiny changes to their chronic disease risk," he says. Until the links between disease and diet are fully understood, there are other ways to protect yourself; get your cholesterol and blood pressure checked, and schedule that colonoscopy and mammogram. No matter what you eat, says Byers, a long life means knowing early where the problems lie.
Stefanick advises that______.
选项
A、eating junk-food will not make much difference to your risk for disease
B、women reduce total fat intake
C、keeping on a low-fat diet is good for women
D、women eat more vegetables and fruits and whole grains
答案
D
解析
本文第三段最后一句话提到:Stefanick建议:go easy on foods containing saturated fatsand trans fats and eat more vegetables and fruits and whole grains.故本题选D项。
转载请注明原文地址:https://kaotiyun.com/show/ixU3777K
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
男性,64岁,突发气喘、心慌2小时,高血压病史9年。检查:半卧位,血压200/120mmHg,心率126次/分,律不齐,双肺湿啰音,尿素氮24.2mmol/L,肌酐433μmol/L,血钾5.8mmol/L,诊断:高血压3级(极高危组),急性左心力衰竭,肾
Convincingthepublictofollowhealthadvicecanbetoughandtime-consuming.Thismaybewhychangestohealthmessagesareof
About14,000peoplewillcontractHIVtoday.Andtomorrowandthedayafterthat,andeverydayfortheforeseeablefuture.That
A、Itisamildcaseofdiarrhea.B、Itisanurgentcaseofdiarrhea.C、Itisimproving.D、Itisdeteriorating.A通过女士讲的“Inyourp
Mentalexercisecanfavorably______thestructureofthebrainjustasphysicalexercisecanchangeone’sbodilyproportions.
Surely,itwouldbesensibletogetasecondopinionbeforetakinganyfurtheraction.
Manypeoplehavebeenkeepingondietinthebeliefthatcuttingfatautomaticallycutstheriskofheartdiseaseandcancer,to
Theoldladystumbledoverastoolinthedarkenedroomandgothurt.
A、Shecan’tmeetherfriendattheengineeringbuilding.B、Shecan’tgiveherfriendaride.C、Shehasalreadypassedtheengine
ThepresidentisoftenawakenedbyanoisycrowdwhichassemblesontheWhiteHouse.
随机试题
男性,30岁,上腹部痛7小时后转移到右下腹,3天后右下腹可触及一界限不清、不活动、压痛性包块,体温38.2℃。WBC16×109/L。合理的处理方式是
主要参与细胞免疫应答的是
患者,女,29岁。初产妇。宫内妊娠37周,胎膜破超过3天,原发性宫缩乏力,宫口扩张慢,体温连续两次38℃以上,宫缩间歇底压痛明显,疑有宫内感染,拟行剖宫术。适宜的剖宫产手术方式是
下列关于仓储合同特征的表述不正确的是()
分析用控制图的调整过程即是()不断改进的过程。
湖南苗族在秋收完成后,还要举办大祭神农的节庆,苗民称为()。
一般将()方法运用于劳动关系协调中的个人或小组问题的解决。
依据《普通高中美术课程标准(实验)》,高中生“通过美术学习活动,学会用艺术思维的方式认识世界,学习艺术表现和交流的方法”。这一表述所体现的理念是()。
泳协在网上发了一篇帖子说有一个游船停靠在距离游泳区30米的位置,并且向游泳区倾倒食物残渣。但实际情况是政府为了疏通航道,临时将这艘游船调到这里停靠的,且停靠区域实际距离游泳区60米。如果领导让你负责与泳协沟通。你会如何进行?
五育并举的教育方针
最新回复
(
0
)