Therewasalwaysasayingof“Onecannotthinkwell,lovewell,sleepwell,ifonehasnotdinedwell.”Ofcoursethemostimportantthinginlifeistohaveafilledstomach.However,ineverycornerofthisworld,therearepeoplewithdifferentfamilystatuses,inanotherword,purchasingpowers.Thosewithgreaterpurchasingpowerscanhaveavarietyofchoisesalotwiderthanthosewhocomesfromthesalariatfamilies.Obviouslythosewithlowerpurchasingpowerhavealimitedrangeoffoodchoisesandmostofthetimestheyprefertoeatthecheaperfood,butthericheronesareanothercompletelynewcase.

　　Therichcanchoosetohavethecheaperfoodorthemoreexpensivefood,despitethefactthatbothcansatisfyourbodies'nutrientsrequirement,whydotheypreferthemoreexpensivefood?Someofthemchoosesthemoreexpensivefoodbecausetheyfeelthatthosefoodaremorehygenic,healthyandtasty,whichistrueinmostcases.Ifthisisthecircumstance,itisworthytopaymoreforthefoodasthebodiescangetmorenutrientsandthereisalowerchanceoffallingill.Howeverontheotherhand,therearesomewhothrowawayenormoussumsofmoneyonsomefoodwhichprobablyarenoteventhatnutritious.Thosepeoplebuythefoodjusttoshowofftheirwealthtotheothersanditsatisfytheirvanity.Thisisthecasewhereitisnotworththemoney.Someofthefoodtheybuyareacquiredthroughverycruelmannersandtheactionendangersthespecies.Forexample,itiscommontoseerichpeoplebuyingexquisite-lookingsharkfinsfromstores.However,accordingtoscientificresearch,thenutrientsfoundinsharkfinsarenogreaterthanthenutrientsfoundinabowlofcookedegg.Inthiscase,thepurchaserisnotbenefitingintermsofphysicalhealthandheisactuallycausingharminthebiodiversityofourearth.

　　Thus,asaconclusion,buyingexpensivefoodcanbeworthitbutitdefinitelydependsonthecircumstanceverymuch.