专业术语—低脂食物并不能减少健康风险4.docx

《专业术语—低脂食物并不能减少健康风险4.docx》由会员分享，可在线阅读，更多相关《专业术语—低脂食物并不能减少健康风险4.docx（1页珍藏版）》请在优知文库上搜索。

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.,