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高中英语UNIT3《LOOKINGGOOD,FEELINGGOOD-WELCOMETOTHEUNIT》文字素材14牛津译林版必修1.doc

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HealthyEatingItiswidelyrecognizedthatahealthy,balanceddietisessentialforpreventingdiseaseandillness,managingyourweight,livinglongerandkeepingthingssuchashair,skinandnailsingoodcondition.Firstandforemost,eatinghealthilydoesnotmeanthatyourdietshouldconsistofnothingbutsaladsandsteamedvegetables?althoughbothcanbeextremelyenjoyable!Abalanceddietisonemadeupofabitofeverythinginthecorrectproportions.Thisensuresyourbodygetsenoughofwhatitneedsandisinnowaydeficient.Infact,recommendationsondietarenowlaidoutnotjusttopreventdeficiency,buttoactivelypromoteoptimalhealth!Nutritionalrequirementsvarydependingonaperson'sage,sexandoverallleveloffitnessandwiththisinmind,theDepartmentOfHealthhavesetguidelinesaccordingly.MostofusrecognizethetermRDA(recommendeddailyallowance).ThesehavebeenrevisedandarenowsetasDRV's(dietaryreferencevalues),thataretailoredtocertainpopulationgroups.However,betweentheagesof19and50yourrequirementsdonotvaryagreatdeal.Fortheaverageadult,itisrecommendedthataroundhalfofourenergyshouldbeprovidedbycarbohydrates,35%fromfatsand15%fromprotein.Formost,puttingthisintopracticewillmeanmakingsurethatyoueatavarietyofdifferentfoods,withemphasisonfoodsrichinstarch&fiberandsmallerproportionsoffats&sugars.Also,activelytryingtoeatmorefruit&vegetablesisalwaysagoodideaastheycontainmanyofthewiderangeofvitaminsandmineralsthebodyneeds.Itisimportanttorememberthatallfoodscanbeincluded,nothingisforbiddenaslongasitiseatenintherightproportions!.w。w-w*k&s%5￥u高考资源网w。w-w*k&s%5￥u