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1、专业术语一低脂食物并不能减少健康风险4Thatcouldmeanthatfatinthedietmayhaveasmalleffect,Dr.Rossouwsaid,perhapsinsomesubgroupsofwomenoroveralongerperiodoftime.HeaddedthatthestudyinvestigatorsMediterraneandressingsdietitian4onetime,thatwilldonexttonothing.,Thewomeninthestudyhad18sessionsinsmallgroupswithatrainednutrition
2、istinthefirstyearandfoursessionsayearafterthat.Inthefirstyear,thewomenonthelow-fatdietsreducedthepercentageoffatintheirdietto24percentofdailycalories,andbytheendofthestudytheirdietshad29percentoftheircaloriesasfat.Inthefirstyear,thewomeninthecontrolgroupwereeating35percentoftheircaloriesasfat,andbyt
3、heendofthestudytheirdietaryfatcontentwas37percent.Thetwogroupsconsumedaboutthesamenumberofcalories.Somemedicalspecialistsemphasizedthatthestudydidnotmeanpeopleshouldabandonlow-fatdiets.,zWhatwearesayingisthatamodestreductionoffatandasubstitutionwithfruitsandvegetablesdidnotdoanythingforheartdiseasea
4、ndstrokeorbreastcancerorcolorectalcancer,zsaidDr.NanetteK.Wenger,acardiologistandprofessorofmedicineatEmoryUniversitySchoolofMedicineinAtlanta.Itdoesn,tsaythatthisdietisnotbeneficial.ButDr.Freedman,theBerkeleystatistician,saidtheoveralllessonwasclear.,We,inthescientificcommunity,oftengivestrongadvicebasedonflimsyevidence,hesaid.ThatSwhywehavetodoexperiments.,
