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1、JunkfoodCheetosTheLutherBurger,abaconcheeseburgerwhichemploysaglazeddonutinplaceofeachbun.Junkfoodisaninformaltermappliedtosomefoodswithlittleornonutritionalvalue,ortoproductswithnutritionalvaluebutwhichalsohaveingredientsconsideredunhealthywhenregularlyeaten,ortothoseconsider
2、edunhealthytoconsumeatall.ThetermwascoinedbyMichaelJacobson,directoroftheCenterforScienceinthePublicInterest,in1972.[1]Factorscontributingtolabelingasjunkfoodarehighlevelsofrefinedsugar,whiteflour,transfatandsaturatedfat,salt,andadditivessuchaspreservativesandcoloringagents.Ot
3、hersincludelackofproteins,vitamins,fiberandothernutrientsforahealthydiet.Somefastfoodispopularbecauseitisinexpensiveandresistanttospoilage.Theseproductsmayalsobepopularwithconsumersbecausetheyarewidelyavailable,requirelittlepreparation,andareeasyorespeciallyfuntoconsume.Junkfo
4、odisassociatedwithhealthproblemsincludingobesity,heartdisease,Type2diabetesanddentalcavities.Problemswithfastfoodmaynotbeapparenttochildren,henceadvertisingaimedatchildrenhascomeundercriticism.[citationneeded]ClassificationWhatconstitutesjunkfoodmaybeconfusingand,accordingtocr
5、itics,includeselementsofclasssnobbery,culturalinfluenceandmoraljudgement.[citationneeded]Forexample,fastfoodinNorthAmerica,suchasashamburgersandfrenchfriesfromcompanieslikeMcDonald's,KFCandPizzaHut,areoftenperceivedasjunkfood,whereassimilarmealssuppliedbymoreup-marketoutletssu
6、chasCaliforniaPizzaKitchenorNando'smaynotbe,despiteoftenhavingthesameorworsenutritionalcontent.[1]Somefoodsthatareconsideredethnicortraditionalarenotgenerallyconsideredjunkfood,suchasfalafel,gyros,pakora,gyozaorchicharron,thoughthesehavelittlenutritionalvalueandareusuallyhighi
7、nfatfrombeingfriedinoil.[citationneeded]Otherfoodssuchaswhitericeorroastpotatoes[citationneeded]arenotconsideredjunkfooddespitehavinglimitednutrientscomparedtowholegrainfoods.Similarly,breakfastcerealsmayberegardedashealthy,butmayhavehighlevelsofsugar,saltandfat.[2]HostessTwin
8、kiesSomechipsorcrispsmaybeharmfulbecausetheymaycontainsaturat
