Tus Sau: Gregory Harris
Hnub Kev Tsim: 8 Lub Plaub Hlis Ntuj 2021
Hloov Hnub: 22 Lub Kaum Ib Hli Ntuj 2024
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Vitamin B12 Digestion and Absorption
Daim Duab: Vitamin B12 Digestion and Absorption

Vitamin B12 yog dej-soluble vitamin. Dej-soluble vitamins yaj tawm hauv dej. Tom qab lub cev siv cov vitamins no, cov seem tshuav tawm hauv lub cev mus los ntawm cov zis.

Lub cev tuaj yeem khaws cov vitamins B12 rau xyoo hauv lub siab.

Vitamin B12, zoo li lwm cov vitamins B, yog qhov tseem ceeb rau cov protein metabolism. Nws pab hauv kev tsim cov qe ntshav liab thiab hauv kev saib xyuas ntawm lub hauv nruab nrab lub paj hlwb.

Vitamin B12 yog ib txwm muaj nyob hauv cov zaub mov tsiaj xws li ntses, nqaij, nqaij qaib, qe, mis, thiab mis nyuj. Vitamin B12 feem ntau tsis muaj nyob hauv cov zaub mov cog. Muaj plaub pluag tshais rau zaub mov yog qhov muaj qhov muaj cov vitamins B12. Cov vitamins muaj ntau ntxiv rau lub cev los ntawm cov cereals rau cov neeg tsis noj zaub. Qee yam khoom noj khoom haus muaj poov xab kuj muaj vitamin B12.

Koj tuaj yeem tau txais cov tshuaj pom zoo ntawm cov vitamin B12 los ntawm kev noj ntau yam zaub mov nrog:

  • Cov nqaij (cov nplooj siab)
  • Shellfish (clams)
  • Nqaij, nqaij qaib, qe, mis thiab lwm yam khoom noj siv mis
  • Qee qhov muaj nplua mias ua tshauv thiab muaj poov xab ua zaub mov

Txhawm rau kom paub tias cov vitamin B12 tau ntxiv rau hauv ib qho khoom lag luam, xyuas cov ntawv pov thawj khoom noj khoom haus ntawm daim paib khoom noj.


Lub cev nqus cov vitamin B12 los ntawm cov tsiaj ua tau zoo dua li cov nroj tsuag. Cov tsis muaj tsiaj txhu los ntawm cov vitamin B12 muaj ntau npaum li B12. Lawv tsis xav tias yuav yog cov zoo ntawm cov vitamin.

Vitamin B12 muaj tshwm sim thaum lub cev tsis tau txais lossis tsis tuaj yeem nqus cov vitamin uas lub cev xav tau.

Cov neeg tsis txaus ntseeg tshwm sim hauv cov neeg uas:

  • Muaj hnub nyoog tshaj 50 xyoos
  • Ua raws cov neeg tsis noj nqaij los noj
  • Tau phais plab lossis hnyuv, xws li phais lub cev yuag
  • Muaj cov mob plab zom mov xws li tus mob celiac lossis Crohn kab mob

Tham nrog koj tus kws kho mob txog kev noj tshuaj Vitamin B12.

Qib tsawg ntawm B12 tuaj yeem ua rau:

  • Mob Kev Plab
  • Pernicious anemia
  • Poob ntawm kev tshuav
  • Looj caj dab los yog tingling hauv caj npab thiab ceg
  • Neeg tsis muaj zog

Txoj hauv kev zoo tshaj plaws kom tau raws li koj lub cev xav tau cov vitamin B12 yog noj ntau yam khoom tsiaj.

Cov tshuaj ntxiv rau vitamin B12 tuaj yeem pom nyob hauv cov hauv qab no:


  • Yuav luag txhua qhov multivitamins. Vitamin B12 zoo dua los ntawm lub cev thaum nws noj nrog rau lwm cov vitamins B, xws li niacin, riboflavin, vitamin B6, thiab magnesium.
  • Daim ntawv qhia tshuaj vitamin B12 tuaj yeem muab los ntawm txhaj tshuaj lossis ua ib cov kua ntswg hauv qhov ntswg.
  • Vitamin B12 tseem muaj nyob rau hauv ib daim ntawv uas yaj hauv qab tus nplaig (sublingual).

Cov Khoom Noj Muaj Txiaj Ntsig Zoo Tshaj Plaws (RDA) rau cov vitamins xav txog ntau npaum li cas ntawm txhua cov vitamin feem ntau cov neeg yuav tsum tau txais nyob rau txhua hnub. RDA rau cov vitamins yuav siv los ua lub hom phiaj rau txhua tus neeg.

Ntau npaum li cas ntawm cov vitamin koj xav tau yog nyob ntawm koj lub hnub nyoog thiab poj niam txiv neej. Lwm yam, xws li cev xeeb tub thiab mob, kuj tseem yog ib qho tseem ceeb. Cov poj niam cev xeeb tub los yog pub niam mis yuav tsum tau ntau dua. Nug koj tus kws kho mob seb qhov twg yog qhov zoo tshaj rau koj.

Kev Ntsuas Siv Yooj Yim Kom muaj vitamin B12:

Cov menyuam mos (noj kom tsawg)

  • 0 txog 6 hlis: 0.4 micrograms ib hnub (mcg / hnub)
  • 7 txog 12 hli: 0.5 mcg / hnub

Cov menyuam


  • 1 mus rau 3 xyoos: 0.9 mcg / hnub
  • 4 txog 8 xyoo: 1.2 mcg / hnub
  • 9 txog 13 xyoos: 1.8 mcg / hnub

Cov Hluas Ntawm Cov Hluas thiab Neeg Loj

  • Cov txiv neej thiab poj niam hnub nyoog 14 thiab laus dua: 2.4 mcg / hnub
  • Cov pojniam cev xeeb tub thiab cov pojniam: 2.6 mcg / hnub
  • Pub niam mis rau menyuam yaus thiab poj niam: 2.8 mcg / hnub

Cobalamin; Cyanocobalamin

  • Cov txiaj ntsig Vitamin B12
  • Vitamin B12 qhov chaw

Mason JB. Cov vitamins, lw cov zaub mov, thiab lwm yam micronutrients. Hauv: Goldman L, Schafer AI, eds. Goldman-Cecil TshuajCov. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016: tshooj 218.

Salwen MJ. Cov vitamins thiab kab kawm. Hauv: McPherson RA, Pincus MR, eds. Henry's Kev Kuaj Mob thiab Kev Tswj Xyuas los ntawm Laboratory Txoj KevCov. 23rd ed. St Louis, MO: Elsevier; 2017: chap 26.

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