Ka pa te ngoikoretanga o te Huaora B12 ki te kore e ngata te tangata i te huaora i roto i a raatau kai, ka kore e rongoa, ka pa he mate penei i te raru o te tirohanga, te ngaro o te maumahara, te ngakau tere tere me te ngaro o te whakakotahitanga a-tinana.

He pai ake te whiwhi ma nga kai o te putake o te kararehe, penei i te kai, te haamana, te miraka me nga hua manu, ko te tikanga ka raru pea te kaimana me te hunga kai huawhenua ki te ngoikore ki te huaora B12.

Ano hoki, ko etahi ahuatanga hauora ka pa ki te ngongo o te tangata ki te B12, tae atu ki te anemia kino kino.

Ko nga ngutu pakaru kua honoa ki te ngoikoretanga o etahi atu huaora B, tae atu ki te huaora B9 (folate), te huaora B12 (riboflavin) me te huaora B6.

Ko te ngoikoretanga o te konutea ka aarai ano nga ngutu pakaru, me te maroke, te riri me te mumura i nga taha o te mangai.

Ko te nuinga o nga tohu ka whakapai ake ma te maimoatanga, engari ko etahi raru e pa ana ki te mate kaore e taea te whakaora mena ka parea.

Kua puta te whakatupato a te NHS: "Ko te roa o te ahuatanga kaore e rongoa, ka piki ake te tupono ka he tonu."

Ko te tohutohu a te NHS: "Mena na te ngoikoretanga o te huaora kei roto i to kai kai, akene ka tohua he papa huaora B12 ki a koe i ia ra i waenga o nga kai.

"Ko nga taangata e uaua ana ki te whai huaora B12 ki roto i a raatau kai, penei i te hunga e whai ana i te kai huawhenua, ka hiahia pea ki nga papa huaora B12 mo te ora.

“Although it's less common, people with vitamin B12 deficiency caused by a prolonged poor diet may be advised to stop taking the tablets once their vitamin B12 levels have returned to normal and their diet has improved.”

Mena kaore to ngoikoretanga o te huaora B12 na te kore o te huaora B12 i roto i to kai kai, me kii he werohanga o te hydroxocobalamin ia rua ki te toru marama mo te toenga o to koiora.