Mercury muTuna: Ihove Iyi Yakachengeteka Kudya?

Zvemukati

• Intro
• Yakashatiswa Zvakadii?
• Matanho Mumhando dzakasiyana
• Referensi Doses uye Akachengeteka Matanho
• Njodzi dzekuratidzwa kweMercury
• Unofanira Kakawanda Sei Kudya Tuna?
• Vamwe Vagari Vanofanira Kudzivisa Tuna
• Icho Chinokosha

Intro

Tuna ihove yemvura yemunyu inodyiwa pasirese.

Iyo inoshamisa zvine hutano uye sosi huru yeprotein, omega-3 fatty acids uye B mavitamini. Zvisinei, inogona kunge iine mwero wepamusoro wemekiyuri, chepfu inorema simbi.

Maitiro echisikigo - akadai sekuputika kwemakomo - pamwe nebasa remaindasitiri - senge kupisa marasha - anoburitsa mercury mudenga kana akananga mugungwa, panguva iyoyo painotanga kuvaka muhupenyu hwemumvura.

Kudya yakawandisa mercury kwakabatana nehutano hwakakomba nyaya, kusimudza kunetsekana nezve kugara uchidya tuna.

Ichi chinyorwa chinoongorora mercury mu tuna uye inokuudza kana zvakachengeteka kudya hove iyi.

Yakashatiswa Zvakadii?

Tuna ine yakawanda mercury kupfuura zvimwe zvinozivikanwa zvegungwa zvinhu, zvinosanganisira salmon, oysters, lobster, scallops uye tilapia ().

Izvi zvinodaro nekuti tuna inodyisa hove diki idzo dzakatosvibiswa nezvakasiyana huwandu hwemekiyuri. Sezvo mercury isiri nyore kuburitsa, inovaka mumatumbu e tuna nekufamba kwenguva (,).

Matanho Mumhando dzakasiyana

Nhanho dzemekiyuri muhove dzinoyerwa kana muzvikamu pamiriyoni (ppm) kana micrograms (mcg). Heano mamwe akajairwa tuna mhando uye yavo mercury kuwanda ():

Referensi Doses uye Akachengeteka Matanho

Iyo US Environmental Protection Agency (EPA) inotaura kuti 0.045 mcg ye mercury paundi (0.1 mcg pa kg) yehuremu hwemuviri pazuva ndiyo yakanyanya yakachengeteka dosi yemekiyuri. Mari iyi inozivikanwa seyedosi rezita (4).

Yako yezuva nezuva rezwi reiyo mercury zvinoenderana nemuviri wako uremu. Kuwanza iyo nhamba neinomwe kunokupa iwe yako yevhiki mercury muganho.

Heano mimwe mienzaniso yezviyero zvemadosi zvinoenderana nezviyero zvakasiyana zvemuviri:

Sezvo dzimwe mhando dzetuna dzakanyanya kukwirisa mumekiyuri, imwe chete-3-ounce (85-gramu) inoshandira inogona kunge iine mercury concentration inoenzana kana kudarika muyero wereferenzi wevhiki.

Tuna yakakwira mu mercury ichienzaniswa nedzimwe hove. Kushanda kamwe chete kwemamwe marudzi etuna kunogona kudarika huwandu hwakawanda hwemekiyuri hwaunogona kushandisa zvakachengeteka pavhiki.

Njodzi dzekuratidzwa kweMercury

Mercury mu tuna ine kunetsekana kwehutano nekuda kwenjodzi dzinosanganisirwa nekuratidzwa kwe mercury.

Kungofanana nemekiyuri inovaka mumakomba ehove nekufamba kwenguva, inogona zvakare kuunganidzwa mumuviri wako. Kuti uone kuwanda kwemekiyuri mumuviri wako, chiremba anogona kuyedza kuwanda kwemekiyuri mubvudzi rako uye muropa.

Yakakwira mazinga ekuratidzwa kwemekyuri kunogona kutungamira kuuropi sero kufa uye kukonzeresa hushoma hunyanzvi hwemotokari, ndangariro uye kutarisa ().

Mune kumwe kuongorora muvanhu vakuru gumi nevaviri, avo vane hukuru hwakanyanya hwemekiyuri vakaita zvakanyanyisa kuipa pamabatiro akanaka emota, pfungwa nekuyeuchidza kupfuura avo vaive nemazinga ezasi e mercury ().

Kuratidzwa kweMercury kunogona zvakare kukonzera kusagadzikana uye kushushikana.

Chidzidzo chevakuru chakaburitswa nemekiyuri pabasa chakawana kuti vakasangana zvakanyanya nekuora mwoyo uye zviratidzo zvekushushikana uye vakanonoka kugadzirisa ruzivo pane kudzora vatori vechikamu ().

Chekupedzisira, mercury buildup yakabatana nenjodzi yakakwira yechirwere chemwoyo. Izvi zvinogona kunge zvichikonzerwa nebasa remekyuri mune mafuta oxidation, maitiro anogona kutungamira kuchirwere ichi ().

Mune chidzidzo chevanopfuura varume vanosvika chiuru nemazana masere, avo vakadya hove dzakawanda uye vaive nehukuru hwepamusoro hwema mercury vaive vakafananidzwa kaviri kufa nekurwadziwa nemoyo uye chirwere chemwoyo ().

Zvisinei, kumwe kutsvagurudza kunoratidza kuti kukwirisa kwemekyuri hakusanganiswi nenjodzi yakawedzera yechirwere chemoyo uye kuti mabhenefiti ekudya hove yehutano hwemwoyo anogona kukunda njodzi dzinogona kuitika dzekumedza mercury ().

Mercury isimbi inorema inogona kukonzeresa hutano. Kukwirira kwakanyanya kwemekyuri muvanhu kunogona kukonzera nyaya dzehuropi, hutano hwepfungwa husina hutano uye chirwere chemwoyo.

Unofanira Kakawanda Sei Kudya Tuna?

Tuna inovaka muviri zvinoshamisa uye yakazara nemapuroteni, mafuta ane hutano uye mavitamini - asi haifanire kudyiwa mazuva ese.

Iyo FDA inokurudzira kuti vanhu vakuru vadye 3-5 maawundi (85-140 magiramu) ehove 2-3 nguva pasvondo kuti vawane yakakwana omega-3 fatty acids uye zvimwe zvinobatsira zvinovaka muviri ().

Nekudaro, tsvagiridzo inoratidza kuti kugara uchidya hove ine mercury concentration kupfuura 0.3 ppm kunogona kuwedzera huwandu hweropa re mercury uye kukurudzira nyaya dzehutano. Mhando zhinji dzetuna dzinodarika iyi huwandu (,).

Naizvozvo, vanhu vakuru vazhinji vanofanirwa kudya tuna zvine mwero uye vachifunga kusarudza dzimwe hove idzo dzakaderera mumekiyuri.

Paunenge uchitenga tuna, sarudza skipjack kana mhando dzemumagaba dzemumagaba, dzisingachengetedze mercury yakawanda sealbacore kana bigeye.

Iwe unogona kudya skipjack uye canned light tuna pamwe chete nemamwe low-mercury marudzi, senge cod, crab, salmon uye scallops, sechikamu cheyakakurudzirwa 2-3 servings yehove pavhiki ().

Edza kudzivirira kudya albacore kana yellowfin tuna kanopfuura kamwe pasvondo. Dzora kubva kugegeye tuna zvakanyanya sezvinobvira ().

Skipjack uye canned light tuna, idzo dzakaderera mumekiyuri, inogona kudyiwa sechikamu chekudya kune hutano. Zvisinei, albacore, yellowfin uye bigeye tuna zvakakwirira mumekiyuri uye zvinofanirwa kuve zvishoma kana kudzivirirwa.

Vamwe Vagari Vanofanira Kudzivisa Tuna

Vamwe vanhu vanonyanya kubatwa nemekyuri uye vanofanirwa kudzikisira kana kurega zvachose tuna.

Izvi zvinosanganisira vacheche, vana vadiki nevakadzi vane nhumbu, kuyamwisa kana kuronga kuve nepamuviri.

Kuratidzirwa kweMercury kunogona kukanganisa kukura kweembryo uye kunogona kutungamira kuhuropi uye nenyaya dzekuvandudza.

Mune ongororo yakaitwa mumadzimai zana nemakumi matatu nevashanu nevacheche vavo, imwe neimwe yekuwedzera ppm yemekiyuri yakadyiwa nevakadzi vane nhumbu yakasungirirwa kudzikira kwemapoinzi manomwe pane avo vacheche 'huropi hwebasa bvunzo zviyero ().

Nekudaro, iyo ongororo yakaratidza kuti yakaderera-mercury hove yaibatanidzwa nezviri nani zvehuropi zvikoro ().

Vakuru vehutano parizvino vanoraira kuti vana, vakadzi vane nhumbu uye vanaamai vanoyamwisa vanofanirwa kudzikisira kudyiwa kwetuna nedzimwe hove dzepamusoro-soro, pachinzvimbo chekuvavarira 2-3 sevhesheni ye-low-mercury hove pavhiki (4,).

Vacheche, vana nevakadzi vane nhumbu, kuyamwisa kana kuyedza kubata vanofanirwa kudzora kana kudzivirira tuna. Nekudaro, ivo vanogona kubatsirwa nekudya yakaderera-mercury hove.

Icho Chinokosha

Kuratidzwa kweMercury kwakabatana nehutano kusanganisira kusashanda zvakanaka kwehuropi, kushushikana, kushushikana, chirwere chemwoyo uye kutadza kukura kwevana.

Kunyangwe tuna ine hutano hwakanyanya, iri zvakare yakakwira mumekiyuri ichienzaniswa nedzimwe hove zhinji.

Naizvozvo, inofanirwa kudyiwa zvine mwero - kwete mazuva ese.

Unogona kudya skipjack uye yakareruka tuna yemumagaba pamwe chete nedzimwe hove-yakaderera-mercury kashoma pasvondo, asi inofanirwa kudzora kana kudzivirira albacore, yellowfin uye bigeye tuna.