Funsani Dokotala Wazakudya: Wakulima Wakulima vs. Salmon Wachilengedwe

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Q: Kodi nsomba zamtchire zimandiyendera bwino kuposa nsomba zam'munda zomwe ndimakulira?

Yankho: Ubwino wodya nsomba zam'munda zolimidwa motsutsana ndi nsomba zamtchire zimatsutsana kwambiri. Anthu ena amaganiza kuti nsomba zomwe zimakwezedwa m'munda zilibe zakudya ndipo zimapopa zodzaza ndi poizoni. Komabe, kusiyana kwa ulimi ndi nsomba zakutchire kwaphulitsidwa mopanda malire, ndipo pamapeto pake, kudya mtundu uliwonse wa salimoni ndikwabwino kuposa kusapezeka konse. Pano pali kuyang'anitsitsa momwe mitundu iwiri ya nsomba imakhalira bwino.

Mafuta a Omega-3

Mwina mudamvapo kuti nsomba zamtchire zimakhala ndi mafuta omega-3 ochulukirapo. Izi sizowona. Kutengera ndi zomwe zaposachedwa kwambiri mu nkhokwe yazakudya ya USDA, ma ounce atatu a nsomba zakutchire amakhala ndi mafuta okwana 1.4g amtundu wa omega-3, pomwe kukula kwa saumoni yomwe ili ndi 2g. Chifukwa chake ngati mukudya nsomba kuti mupeze mafuta omega-3 ochulukirapo pazakudya zanu, nsomba yomwe idakwezedwa ndi famu ndiye njira yabwino.

Omega-3 mpaka Omega-6 Ration

Phindu lina la nsomba zakutchire pazakulira pafamu ndi kuchuluka kwa mafuta a omega-3 ndi mafuta a omega-6 mofanana ndi thanzi labwino. Uwu ndi mawu achinyengo, chifukwa chiŵerengero chamtunduwu sichimakhudza thanzi lanu - kuchuluka kwa omega-3s ndikowonetseratu thanzi labwino. Kuphatikiza apo, ngati kuchuluka kwa mafuta a omega-3 ndi omega-6 kunali koyenera, ndibwino nsomba zaulimi. Mu nsomba ya Atlantic yomwe imakwezedwa ndi famu chiwerengerochi ndi 25.6, pomwe nsomba zakutchire za Atlantic chiwerengerochi ndi 6.2 (chiwerengerochi chimapereka mafuta ambiri a omega-3 komanso mafuta ochepa a omega-6).

Mavitamini ndi Mchere

Pazakudya zina monga potaziyamu ndi selenium, nsomba zamtchire zimakhala ndi zochulukirapo. Koma nsomba ya salimoni imakhala ndi zakudya zina zambiri monga folate ndi vitamini A, pamene mavitamini ena ndi mchere ndi ofanana pakati pa mitundu iwiriyi. Ponseponse phukusi la mavitamini ndi mchere lomwe mitundu iwiri ya salimoni ili nayo ndi yofanana, pazolinga zonse.

Kuipitsidwa

Nsomba, makamaka nsomba, ndi chakudya chopatsa thanzi kwambiri. Kudya kwambiri nsomba mu zakudya nthawi zambiri kumalumikizidwa ndi matenda ochepa. Imodzi yoipa: Poizoni ndi zitsulo zolemera zomwe zimapezeka mu nsomba. Kotero kwa anthu ambiri omwe amadya nsomba, izi zimafuna kusanthula mtengo / phindu. Koma ofufuza atawona ngati phindu ndi kuopsa kodya nsomba pokhudzana ndi kupezeka kwa mercury, pomaliza pake ndikuti maubwino ake amapitilira zoopsa zake, makamaka ndi saumoni yomwe ili ndi milingo yocheperako poyerekeza ndi nsomba zina zambiri.

Polychlorinated biphenyls (PCBs) ndi poizoni wina wamankhwala omwe amapezeka mu nsomba zakutchire komanso zaulimi. Salimoni wolimidwa amakhala ndi ma PCB ochulukirapo koma nsomba zamtchire sizikhala ndi poizoni. (Mwatsoka ma PCB ndi poizoni wofananira ali ponseponse mdera lathu ndipo amapezeka mufumbi mnyumba mwanu.) Kafukufuku wa 2011 wofalitsidwa mu Sayansi Yachilengedwe & Technology inanena kuti zinthu zosiyanasiyana monga moyo wa nsomba (chinook salimoni amakhala nthawi yayitali kuposa mitundu ina) kapena kukhala ndi kudya pafupi ndi gombe kungayambitse milingo ya PCB mu nsomba zakutchire pafupi ndi zomwe zimapezeka mu nsomba zaulimi. Nkhani yabwino ndiyakuti kuphika nsomba kumabweretsa kuchotsedwa kwa ma PCB ena.

Chotengera: Kudya mtundu uliwonse wa nsomba kukupindulitsani. Pamapeto pake, anthu aku America samangodya nsomba zokwanira ndipo akatero, nthawi zambiri amakhala nsomba zosayera zoyera zopangidwa ndimakona anayi, kumenyedwa, ndi kukazinga. M'malo mwake, ngati muyang'ana magwero apamwamba a protein aku America, nsomba zikuwonetsa 11 pamndandanda. Mkate uli pa nambala 5. Inde, anthu aku America amapeza mapuloteni ambiri muzakudya zawo kuchokera ku mkate kuposa nsomba. Ndibwino kuti mudye nsomba zam'munda zabwino (popanda utoto wowonjezerapo kuti utoto uzikongoletsa!) Kuposa nsomba ayi. Komabe ngati mumadya nsomba pafupipafupi (kuposa kawiri pa sabata), ndiye kuti kungakhale koyenera kugula nsomba zakutchire kuti muchepetse kupezeka kwa ma PCB ochulukirapo.

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