首页
登录
职称英语
(1) We’re always being told by the Department of Health to eat five portions
(1) We’re always being told by the Department of Health to eat five portions
游客
2023-10-28
34
管理
问题
(1) We’re always being told by the Department of Health to eat five portions of fruit and vegetables a day. But it’s not clear where the evidence for this comes from and a large study by the European Prospective Investigation into Cancer and Nutrition (EPIC) two years ago of the dietary intake of more than 400,000 people found only a weak link between eating fruit and vegetables and a reduction in overall cancer risk. There’s no evidence it reduces breast or prostate cancer.
(2) Even so, how could anyone argue against eating more fruit and vegetables? Well, it depends what fruit you’re eating. A review article in the Canadian Medical Association Journal warns that a chemical in grapefruits can interact fatally with certain medicines. Even apple juice, the staple of many breakfast tables, may reduce our absorption of some drugs. Parents also often think fruit juice is a healthy alternative to soda drinks but juices contain sugar and calories too—as much as a glass of Coke (160 calories)—so should be drunk in moderation.
(3) Grapefruit has also been linked to an increase in breast cancer. A study in the British Journal of Cancer (BJC) of 500,000 postmenopausal women found that eating a quarter of the fruit a day increased the risk by 30%.
(4) There is one good reason for not eating grapefruits—they taste sour. But they are unlikely to increase your risk of breast cancer: further research in the BJC showed no increase of breast cancer in pre- or postmenopausal women who tuck into grapefruits or drink juice.
(5) Grapefruit contains a type of chemical called furanocoumarin (also found in Seville oranges and limes but not Valencia or other sweet oranges), which, by inhibiting the enzyme CYP3A4, stops the breakdown of some prescription drugs. So the concentrations of these drugs rise and can have serious side-effects, including kidney damage, heart block (where no electrical impulses pass through the heart and it can stop beating), and deep vein thrombosis (which occurred when an oral contraceptive was taken by a woman who also ate grapefruit three days in a row).
(6) Patient information leaflets should tell you what foods to avoid with which drugs. If in doubt, ask your doctor. So you don’t need to eat less fruit, and may still need to eat more. Another paper from the EPIC study found a 22% reduction in deaths from heart attacks in people who ate eight portions of fruit and vegetables a day compared to those who ate three or fewer. The way the study is designed, however, means that it can only suggest a link—it can’t prove one. [br] The effect of the chemical in grapefruits on certain medicine might NOT lead to______.
选项
A、breast cancer
B、kidney damage
C、heart block
D、deep vein thrombosis
答案
A
解析
细节题。由原文第五段第二句可知,西柚含有的化学物质对某些药物产生的影响可能导致严重的副作用,包括肾损害、心脏传导阻滞和深静脉血栓形成,所以[A]与文意不符,故为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3136869.html
相关试题推荐
A、YoucangetanewCDwithonedollar.B、UsedCDsarealwayscheaperthannewo
Theeldestchildisthoroughly______becausetheyalwaysgivehimwhateverhew
A、Howtobecomeanactiveandhealthycentenarian.B、Whatdietthecentenarians
(1)Every101minutesorso,aDepartmentofDefenseimagingsatellitecircle
(1)We’realwaysbeingtoldbytheDepartmentofHealthtoeatfiveportions
(1)We’realwaysbeingtoldbytheDepartmentofHealthtoeatfiveportions
(1)We’realwaysbeingtoldbytheDepartmentofHealthtoeatfiveportions
PassageTwo[br]Whyisitdifficultforthelow-incomefamiliestocookhealthy
A、Shehasalwaysgonetosleepearly.B、Shedoesn’tlikeparties.C、She’sbeena
Heissokindandgenerousthathealwayscastshis______uponthewaters.A、sto
随机试题
Thediscoverythat,frictionexcluded,allbodiesfallatthesamerateissosi
Ifyouwanttoseewhatittakestosetupanentirelynewfinancialcenter
A.A B.B C.C D.D E.E儿科病房()
患儿男,10个月,体重9kg。腹痛,哭闹不安伴腹泻、呕吐3天,发热1天。头两天腹
胆道出血的特点是A、既往无溃疡史,而有应激因素存在 B、来势凶猛,出血量大
速度v、压强p、密度ρ的无量纲集合是:A.ρp/v B.pv2/ρ C.
期门穴的位置是( ) A.锁骨中线上,当第5肋间隙处 B.锁骨中线上,当第
符合资本化条件的资产在购建或者生产过程中发生非正常中断、且中断时间连续超过3
平屋面的涂膜防水构造有正置式和倒置式之分,所谓倒置式指的是()。A.隔热保
关于工程量清单招标方式下投标人报价的说法,正确的是()。A.专业工程暂估价
最新回复
(
0
)