胡萝卜素转变成维生素A，有助于增强机体的免疫轼能，在预防上皮细胞癌变的过程中具有重要作用。胡萝卜中的木质素也能提高机体免疫机制，间接消灭癌细胞；

胡萝卜还含有降糖物质，是糖尿病人的良好食品，其所含的某些成分，如懈皮素、山标酚能增加冠状动脉血流量，降低血脂，促进肾上腺素的合成，还有降压，强心作用，是高血压、冠心病患者的食疗佳品。

NTOHUAUA—HEAVYRAINSTORMS—REFUSALOFANOFFERTOBECARRIEDOVERASTREAM—PERILOUSSWIMMINGFEAT—EPISODEWITHAWILDBOAR—STARTONATRIPAROUNDTHEISLAND—OBTAINALOAFOFBREAD—PEOPLENOTDESIROUSOFLISTENINGTOTHEMORMONELDERS—CUSTOMSOFTHENATIVES—REPUTATIONOFPROTESTANTCLERGY1ONTAHITI—WITHTHECHIEFMAGISTRATE2OFUAIRAI—ACROSSASMALLBAYINACANOE—FRENCHGARRISON3ATTHEISTHMUS4—WITHMYFRIENDPOHE—REVIEWOFAHARDJOURNEY—AGAINATHUAUA.AStherewerenovessels5boundforwherewewishedtogoatthistime,onNovember13thwestartedonourreturnfromPapeetetoHuaua,butitrainedsohardthatwehadtoseekshelteraftertravelingsixmiles.Wecametoacreek6abouttworodsacross,andbegantotakeoffourshoespreparatorytowading7it.Justthenasprightly8littlewomancamealongandtoldusshewouldcarryusacrossonherback.Shesaid,"Therearelittlesharpshellsandrocksthatwillcutyourfeet,andtheywillnothurtmine,forIamusedtothem.Myfeetaretough,butyouarenotusedtogoingbarefootlikeus,andyourfeetaretender.Iwillgladlycarryyouoverfreeratherthanseeyoucutyourfeet."Shepleadwithsuchearnestnessandsoinnocentlythatitbecamealmostatemptation,especiallyasshewouldhaveconsidereditagreathonortocarrytheservantsofGod,asshewaspleasedtocallus.Saidshe,"YouneednotbeafraidthatIwillfalldownwithyou;Icancarryyouwithease."Whenherverykindofferwasdeclined,sheseemedverymuchdisappointed.Wetriedtoconsoleherbytellingherhowgreatlyweappreciatedherkindness,thenproceededonourway,butowingtotheheavyrainsooncalledatanativeshouse,wherewewerepleasantlyentertained.Hespreadthebestfoodhehad.Thiswasputonthebed.Healsoaskedustotakeseatsonthebed,offeringasanexcuse,"Thefleas9aresobadwehavetogetuptheretobeoutoftheway,ortheywillgetinthefood."Weacceptedthesituationwiththanks,andfeltthatwewererightroyallytreated.Thepeoplefromaroundflockedinuntilthehousewassothoroughly10packedwithhumanitythatthefleashadafineopportunitytogorge11themselves.Thepeopledidnotseemtobemuchannoyedbythem,buttalkedandsangtill11,oclock,whenweturnedinfortheremainderofthenight,concludingthatthefleashadbeensofeastedthattheywerewillingtoletusslumber12inpeace,whichwedid.November14thweresumedourjourney,onlytobedriveninbytherain,butnotuntilwewerethoroughlydrenched13.Havingmetwithouroldandwelltriedfriend,Hamatua,whenthestormsubsided14wecontinuedourjourneytoPapeno.Acallwasmadeonthegovernorofthatdistrict,whotoldusthattheriverwassoswollen15thatitwasnotsafeforwhitementoattempttocross.Hesaidthenativescouldgooversafely,butwecouldnotdoso,andtoldthepartytheywerewel