去wiki看.苹果有什么无益处,不知道你想干什么,问题说的不够清楚.

　　wikipedia

　　百科上就有.但是不知道你想要多专业的?什么水平?

　　Healthbenefits

　　Healthbenefitsofappleconsumption.[54][55][56][57]

　　Theproverb"Anappleadaykeepsthedoctoraway.",addressingthehealtheffectsofthefruit,datesfromthe19thcenturyWales.[58]Researchsuggeststhatapplesmayreducetheriskofcoloncancer,prostatecancerandlungcancer.[54]Comparedtomanyotherfruitsandvegetables,applescontainrelativelylowamountsofvitaminC,butarearichsourceofotherantioxidantcompounds.[47]Thefibercontent,whilelessthaninmostotherfruits,helpsregulatebowelmovementsandmaythusreducetheriskofcoloncancer.Theymayalsohelpwithheartdisease,[59]weightloss,[59]andcontrollingcholesterol,[59]astheydonothaveanycholesterol,havefiber,whichreducescholesterolbypreventingreabsorption,and(likemostfruitsandvegetables)arebulkyfortheircaloriccontent.[56][59]

　　Thereisevidencethatinvitroapplespossessphenoliccompoundswhichmaybecancer-protectiveanddemonstrateantioxidantactivity.[60]Thepredominantphenolicphytochemicalsinapplesarequercetin,epicatechin,andprocyanidinB2.[61]

　　Applejuiceconcentratehasbeenfoundtoincreasetheproductionoftheneurotransmitteracetylcholineinmice,providingapotentialmechanismforthe"preventionofthedeclineincognitiveperformancethataccompaniesdietaryandgeneticdeficienciesandaging."Otherstudieshaveshownan"alleviat[ionof]oxidativedamageandcognitivedecline"inmiceaftertheadministrationofapplejuice.[57]

　　However,appleseedsaremildlypoisonous,containingasmallamountofamygdalin,acyanogenicglycoside;itusuallyisnotenoughtobedangeroustohumans,butcandeterbirds.[62]