Feem ntau cov neeg nojβ-carotenenyob rau hauv cov khoom noj thiab khoom noj khoom haus kho mob. Qhov tseem ceeb tshwm sim tshaj plaws ntawm kev siv ntau tshaj ntawm β-carotene yog tawv nqaij daj, thiab tom qab ntawd tsis muaj lwm cov kev phiv tseeb. Cov kev tshawb fawb tau taw qhia tias kev noj 20 mg / kg ntawm β-carotene txhua hnub los ntawm cov neeg haus luam yeeb yuav ua rau muaj kev pheej hmoo mob ntsws.
Qhov tseem ceeb ntawm lub cev ntawm beta carotene rau tib neeg yog hloov nws mus rau hauv cov vitamin A. Kev noj tshuaj ntxiv ntawm vitamin A tuaj yeem ua rau vitamin A lom. Yog li, kev noj tshuaj vitamin A txhua hnub ntawm cov neeg laus Suav yuav tsum tsis pub tshaj 3000ug retinol dhia sib luag (tshwj tsis yog kev kho mob los ntawm tus kws kho mob ntawm cov tshuaj vitamin A tsis txaus). Tab sis qhov tseeb, kev noj tshuaj vitamin A feem ntau yog pom ntawm kev noj zaubmov ntau hauv vitamin A los ntawm kev siv tshuaj lossis zaub mov noj. Muaj qee zaum ntawm kev noj tshuaj vitamin A ua rau mob los ntawm kev tsim tawm ntawm beta carotene, vim tias beta carotene yuav tsum tau ploj mus los ntawm cov enzymes ua ntej nws tuaj yeem hloov mus rau hauv Vitamin A, yog tias koj noj ntau dhau beta carotene, lub enzyme yuav tsis tuaj yeem rhuav tshem. nws txhua, thiab yuav tsis hloov dua siab tshiab rau kev noj cov vitamins ntau.
Nyob rau hauv txhua rooj plaub, tsuas yog tsim cov khoom noj khoom haus, tsis txhob' t dhau nws. Raws li cov lus pom zoo pom zoo los ntawm Lub Tsev Noj Mov Hauv Suav xyoo 2013, cov txiv neej neeg laus yuav tsum muaj 800ugRAE ib hnub thiab cov poj niam laus 700ugRAE ib hnub. Kev hloov pauv hloov ntawm β-carotene thiab RAE yog: RAE = 1/2 * β-carotene hauv kev noj zaub mov kom zoo (khoom noj qab haus huv) +1 / 12 * car-carotene hauv zaub mov, chav tsev yog ug.